When Boundaries Trigger Splitting: Grace and Monique’s Stories
Grace, a senior engineer, was long idealized as the “perfect daughter” — until she clearly said no to a family demand. Suddenly, she was “selfish” and “difficult.” Monique, an equity partner, was praised for brilliance one week but labeled “cold” the next when prioritizing her needs. These abrupt shifts reflect the nervous system’s threat detection in attachme
- When Boundaries Trigger Splitting: Grace and Monique’s Stories
- Nervous System and Attachment Dynamics Underlying Splitting in Family Relationships
- Grace and Monique: Navigating Splitting in the Family System
- Both/And. Compassion and Accountability
- The Systemic Lens
- Healing the Fractured Self: Moving Beyond Splitting in the Family System
- Grace and Monique: Navigating the Turbulence of Splitting in Family and Work
- Grace and Monique: When Boundaries Meet Splitting
- Frequently Asked Questions
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When Boundaries Trigger Splitting: Grace and Monique’s Stories
Grace, a senior engineer, was long idealized as the “perfect daughter” — until she clearly said no to a family demand. Suddenly, she was “selfish” and “difficult.” Monique, an equity partner, was praised for brilliance one week but labeled “cold” the next when prioritizing her needs.
These abrupt shifts reflect the nervous system’s threat detection in attachment relationships, activating fight/flight/fawn/freeze responses and somatic memories of past relational trauma [6,7]. As Dr. Peter Fonagy highlights, fragmented procedural memory can fracture identity and relational safety, triggering shame and grief 19825272 . DOI: 10.1017/S0954579409990198.”>7.
Understanding these dynamics helps untangle splitting from genuine character shifts, fostering compassion and healing in family systems [8,9].
Title: When Boundaries Trigger Splitting: Grace and
Monique’s Stories
SEO Title: Splitting and Boundaries in Family
Systems
Meta Description: Explore how setting boundaries can
trigger splitting in family dynamics, with insights on nervous system
and attachment from clinical experts.
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Focus Keyphrase: splitting in family systems
Grace’s hand trembled slightly as she closed her laptop after the team meeting. The sleek conference room, bathed in late afternoon light, felt suddenly colder. Her voice, usually calm and precise, had wavered when she told her mother she couldn’t attend the weekend family gathering—she needed space to recharge.
That simple boundary, meant to preserve her well-being, rippled through the family like a fault line. Overnight, Grace shifted from the “perfect daughter” to the “selfish one,” her mother’s texts growing terse, her father’s silence louder.
Meanwhile, across town, Monique sat at her polished desk, the hum of the law firm’s open office around her. Just days earlier, she had been applauded for leading a successful merger, her brilliance a beacon for junior associates.
Yet, when she declined to take on extra pro bono cases to protect her mental health, her closest colleagues whispered about her “selfishness.” Monique’s identity as the “brilliant partner” fractured, replaced by an invisible label of “self-centered,” a stark emotional flip that left her questioning her place in the firm and family alike.
These experiences reflect a phenomenon known clinically as
splitting—a defense mechanism often observed in family systems
where individuals are seen in extremes, “all good” or “all bad,” with
little room for nuance or complexity [1,2]. Splitting is not a character
flaw or a deliberate choice; instead, it emerges from the nervous
system’s protective response to perceived relational threat.
From a trauma-informed perspective, as outlined by clinicians like Peter Fonagy and Mary Target 19825272 . DOI: 10.1017/S0954579409990198.”>7, splitting can be understood through the lens of attachment and threat detection. When a boundary—a healthy assertion of self—is set, it may trigger implicit memories stored in procedural and somatic memory systems.
These memories, often encoded during early relational experiences, activate autonomic arousal patterns such as fight, flight, freeze, or fawn responses [6,10]. The family system, wired for relational safety, can interpret the boundary as a rupture or abandonment, activating shame and grief responses that fuel splitting.
Dr. Allan Schore’s work on the right brain’s role in affect regulation emphasizes how relational stress can lead to rapid shifts in perception and emotional valence within close relationships 17659821 . DOI: 10.1016/j.bandc.2006.05.007.”>14.
In Grace’s case, her mother’s nervous system may have detected the boundary as a threat to attachment security, triggering a cascade of autonomic responses that reframe Grace’s identity from “good” to “bad.” Similarly, Monique’s colleagues’ reactions reflect a collective procedural memory of expectations and roles, where deviation from the “brilliant” archetype feels destabilizing and threatening.
Understanding splitting as a nervous system and attachment response rather than a moral judgment opens pathways for compassion and repair. It invites families to hold complexity—to recognize that boundaries do not diminish love or loyalty but are essential for individual identity and relational health [8,9].
As Grace and Monique navigate these emotional shifts, they embody the challenge and potential of transforming splitting into integration, grief into growth, and fractured perceptions into relational safety.
For driven women like Grace and Monique, this work is not about erasing
the pain of being misunderstood but about learning to hold
Nervous System and Attachment Dynamics Underlying Splitting in Family Relationships
When Grace set a boundary with her parents, shifting from the “good
daughter” role to what felt like “the bad daughter,” her family’s
reactions were more than simple judgments—they were expressions of a
nervous system responding to perceived threat. Similarly, Monique’s
colleagues’ swift swing from admiration to criticism reflects a
collective procedural memory that encodes relational roles and
expectations, triggering autonomic arousal when those roles are
disrupted.
nervous system pattern names a pattern that often lives at the intersection of attachment learning, nervous-system protection, relational memory, and the adaptive strategies driven women developed to stay safe or connected.
In plain terms: This pattern makes sense in context. It is not a personal defect; it is a signal that a deeper repair process may be needed.
splitting in family systems names a pattern that often lives at the intersection of attachment learning, nervous-system protection, relational memory, and the adaptive strategies driven women developed to stay safe or connected.
In plain terms: This pattern makes sense in context. It is not a personal defect; it is a signal that a deeper repair process may be needed.
Splitting, clinically understood as a defense mechanism often associated with borderline personality organization [1,2], can be reframed through the lens of nervous system regulation and attachment theory.
According to Allan Schore and Stephen Porges, the autonomic nervous system (ANS) plays a central role in how humans detect and respond to social threat, engaging fight, flight, freeze, or fawn responses to maintain safety 17659821 . DOI: 10.1016/j.bandc.2006.05.007.”>14.
When Grace’s boundary-setting activates her family’s threat detection systems, it can trigger implicit somatic memories of instability or abandonment, leading to rapid shifts in perception—from idealization to devaluation.
Attachment theory, pioneered by John Bowlby and expanded by Mary Main and Peter Fonagy, further elucidates how early relational patterns shape these responses. Secure attachment fosters a capacity to hold complexity and tolerate ambivalence in relationships.
In contrast, insecure or disorganized attachment can predispose individuals and family systems to dichotomous thinking—seeing people as “all good” or “all bad” because the nervous system struggles to integrate conflicting emotional information [7,10].
Grace’s family’s procedural memory—the ingrained expectations about her role as the compliant daughter—becomes destabilized when she asserts autonomy, triggering a defensive regression into splitting.
Monique’s experience at work echoes this dynamic on a collective level. The equity partners’ alternating perceptions of her brilliance and selfishness reflect a group’s anxious attempt to preserve relational equilibrium.
Deviations from expected roles disrupt procedural memories encoded in the nervous system, eliciting autonomic arousal and defensive splitting to manage uncertainty and preserve cohesion 31574104 . DOI: 10.1371/journal.pone.0223038.”>12. This collective splitting is not a moral failing but a neurobiological survival strategy rooted in threat detection and the need for predictability.
Understanding splitting through this neuro-affective framework
invites compassion rather than judgment. It acknowledges that these
rapid shifts are expressions of underlying shame, grief, and identity
struggles—not character flaws [5,8]. For Grace and Monique, their
experience is a dance between their nervous system’s survival impulses
and their emerging individuation needs. Boundaries, often misread as
rejection, are in fact vital for establishing relational safety and
authentic connection over time 22299065. DOI: 10.1037/a0023081.”>9.
Clinically, this perspective aligns with interventions emphasizing
regulation of autonomic arousal and fostering secure attachment
representations, such as Mentalization-Based Treatment (Fonagy et al.)
and Dialectical Behavior Therapy (Linehan et al.) [2,16]. These
approaches help individuals and families develop tolerance for
complexity and ambiguity, transforming splitting into integration and
fractured perceptions into relational safety.
For driven women navigating these relational challenges, the work is
not about erasing the pain of being misunderstood but about cultivating
resilience in the nervous system and relational context. It is learning
to hold oneself and others with curiosity and grace, allowing identity
and connection to coexist without collapsing into binary judgments. This
process lays the groundwork for healing fractured family dynamics and
rewriting procedural memories with
Grace and Monique: Navigating Splitting in the Family System
Consider Grace, a senior engineer whose identity within her family was tethered tightly to being the “good daughter.” Her family’s perception of her was a pendulum swinging between idealization and devaluation, a classic example of splitting.
When Grace excelled at work and maintained caregiving roles at home, she was lauded as brilliant, dependable, and selfless. However, the moment she asserted a boundary — declining to take on additional caregiving duties that compromised her own wellbeing — the family narrative shifted abruptly.
She was suddenly characterized as selfish, ungrateful, and difficult. This binary shift did not reflect an objective change in Grace’s character but rather the family’s struggle to hold complex, conflicting feelings simultaneously without fracturing into all-or-nothing judgments.
Grace’s experience illustrates how splitting functions as a relational defense mechanism rooted in the nervous system’s threat detection processes.
When a family member’s behavior or identity challenges the established narrative, the autonomic nervous system can register this as a threat, triggering fight, flight, freeze, or fawn responses not only in the individual but across the family system [7,14].
For Grace, setting a boundary activated somatic memories of past relational ruptures, shame, and grief that had been procedural and implicit rather than consciously processed. Her family’s splitting response was an attempt to re-establish relational safety by simplifying her identity into a stark, manageable category—either “perfect” or “flawed.”
Monique, an equity partner at a prestigious law firm, faced a similar pattern, albeit in a different relational context. Her family alternated between admiring her as brilliant, capable, and inspirational, and castigating her as ruthless, selfish, and emotionally unavailable.
Monique’s family system struggled with integrating her ambitious professional identity alongside her relational roles. The oscillation between idealization and devaluation was not a reflection of Monique’s true self but a manifestation of the family’s difficulty tolerating complexity and ambiguity, particularly when threatened by perceived disruptions to attachment security [8,10].
From a clinical perspective, both Grace and Monique’s experiences underscore how splitting is deeply entwined with attachment dysregulation and autonomic arousal. According to Fonagy and Luyten 19825272 .
DOI: 10.1017/S0954579409990198.”>7, disruptions in mentalization—our ability to understand the mental states of ourselves and others—exacerbate splitting by limiting the capacity to hold nuanced, contradictory perceptions simultaneously. When mentalization falters, the nervous system often defaults to rapid threat detection and binary categorization as a survival strategy.
This is compounded by procedural memories encoded through early relational trauma or invalidation, which shape implicit expectations and emotional responses within the family system [6,18].
For driven women like Grace and Monique, who navigate high-demand roles both professionally and within their families, splitting can become a profound source of internal conflict and identity fragmentation.
The internalized shame and grief arising from being alternately idealized and devalued activate autonomic dysregulation patterns, often leading to fawn or freeze responses aimed at preserving relational safety [14,17]. This dynamic perpetuates a cycle where authentic self-expression is stifled by the fear of triggering family rejection or abandonment.
Therapeutic approaches such as Dialectical Behavior Therapy (DBT) and Mentalization-Based Treatment (MBT) offer pathways toward integration by fostering regulation of autonomic arousal and enhancing mentalization capacity [2,16].
DBT’s emphasis on mindfulness and distress tolerance helps individuals like Grace and Monique develop resilience in their nervous systems, learning to sit with discomfort without resorting to splitting.
MBT focuses on strengthening secure attachment representations, enabling more flexible and compassionate perceptions of self and others, which can transform fractured relational patterns into opportunities for growth and connection 19825272 . DOI: 10.1017/S0954579409990198.”>7.
In clinical work, the goal is not to erase the pain of being misunderstood but to cultivate a relational context where identity can be held with curiosity and grace, not binary judgment.
This process involves recognizing the somatic and procedural memories that underlie splitting, addressing the shame and grief entwined with these experiences, and building relational safety that supports complexity and ambiguity.
For Grace and Monique, therapy can become a space to rewrite procedural memories, fostering a coherent sense of self that integrates both strengths and vulnerabilities without collapsing into extremes.
Navigating splitting in the family system is challenging,
especially
Both/And. Compassion and Accountability
In family dynamics marked by splitting, the push and pull between idealization and devaluation often feels like a relentless pendulum swing.
Grace’s experience as the “good daughter” until she set a boundary, and Monique’s oscillation between being seen as brilliant and selfish, illustrate how these extremes are not about fixed truths but about the nervous system’s threat detection mechanisms gone awry.
When attachment security is compromised, procedural memories encoded in the body activate fight, flight, freeze, or fawn responses—triggering autonomic arousal that colors perception with urgency and fear rather than nuance [6,14].
“Recovery can take place only within the context of relationships; it cannot occur in isolation.”
Judith Herman, MD, psychiatrist and author of Trauma and Recovery
Clinical researchers like Peter Fonagy and Mary Target emphasize that moving beyond splitting requires cultivating a capacity for mentalization—the ability to hold multiple, sometimes contradictory perspectives about self and others with curiosity rather than judgment 19825272 . DOI: 10.1017/S0954579409990198.”>7.
This “both/and” stance allows for compassion without excusing harm, and accountability without collapsing into shame. Grace’s boundary-setting, for example, can be held alongside her family’s fear or disappointment, recognizing that both her needs and their reactions are valid and meaningful.
Monique’s brilliance and moments of perceived selfishness can coexist as facets of a complex identity shaped by relational patterns and internalized expectations [2,8].
Trauma-informed therapy aims to create relational safety where somatic memories of threat can be reprocessed and integrated, reducing the all-or-nothing splits in perception. This work addresses the grief and shame that often underlie rigid binary thinking, inviting a fuller, more coherent sense of self to emerge [3,6].
As therapists like Marsha Linehan have shown, integrating compassion with firm boundaries supports growth by transforming dysregulated emotional responses into reflective awareness and choice 25806661 . DOI: 10.1001/jamapsychiatry.2014.3039.”>16.
Ultimately, the goal is not to erase the pain of being “perfect one
moment and terrible the next” but to hold these experiences in a
relational context that fosters resilience and connection. Grace and
Monique’s stories remind us that embracing complexity—both strengths and
vulnerabilities—can transform fractured family narratives into
opportunities for healing and deeper understanding.
The Systemic Lens
Understanding splitting within family dynamics requires more than
individual insight—it demands a systemic perspective that considers how
family roles, gender expectations, cultural narratives, and class
position shape patterns of perception and loyalty. Grace and Monique’s
experiences reflect not only personal histories but also the relational
and sociocultural contexts that frame their identities and emotional
responses.
From a family systems standpoint, splitting often functions as a protective mechanism to preserve fragile attachments and maintain homeostasis in environments where emotional safety feels scarce. As noted by Guillén and colleagues 32304101 .
DOI: 10.1111/famp.12537.”>8, family members unconsciously enact roles that uphold polarized views—“good” versus “bad”—to manage threat and control overwhelming feelings. These roles become embedded in procedural memory and somatic patterns, activating autonomic arousal systems that trigger fight, flight, freeze, or fawn responses when boundaries are tested or loyalties challenged.
Gender norms further complicate this dynamic. For women like Grace and Monique, cultural scripts around caretaking, compliance, and success can intensify internal conflict when asserting boundaries or expressing needs.
The nervous system’s threat detection heightens when such actions risk disrupting established relational hierarchies, eliciting feelings of shame and triggering splitting as a defense. As Fonagy and Luyten emphasize, attachment insecurity and disrupted mentalization capacities exacerbate polarized perceptions, making relational safety elusive 19825272 . DOI: 10.1017/S0954579409990198.”>7.
Class and cultural expectations also influence how family members
interpret behaviors and assign value. Grace’s boundary-setting as a
senior engineer may clash with familial expectations shaped by cultural
ideals of filial duty, while Monique’s fluctuating appraisal as an equity
partner reflects the tension between individual ambition and communal
belonging. These intersectional pressures underscore the loyalty binds
that complicate emotional expression and identity coherence.
Trauma-informed therapy approaches recognize that these splits are
not failures but adaptive responses rooted in somatic memories of threat
stored in the body and brain [3,6]. By cultivating relational safety,
therapists help clients reprocess these embodied experiences,
integrating fragmented self-states into a more nuanced and stable sense
of identity. This process involves moving beyond binary judgments to
embrace complexity—acknowledging strengths alongside vulnerabilities
without fear of rejection or abandonment.
Such integration aligns with Marsha Linehan’s dialectical approach,
which combines compassionate acceptance with firm boundaries to
transform dysregulated emotional reactivity into reflective awareness
and intentional choice 25806661. DOI: 10.1001/jamapsychiatry.2014.3039.”>16.
For driven women navigating systemic pressures, this therapeutic work
offers a path toward resilience—where the family narrative evolves from
fracture to connection, and the painful oscillation between “perfect
Healing the Fractured Self: Moving Beyond Splitting in the Family System
Grace’s story is familiar: a senior engineer, long cast as the “good daughter,” praised for her intellect and reliability—until she set a boundary around her time and emotional energy. Suddenly, she was labeled “difficult” and “ungrateful.” Monique, an equity partner at a prestigious firm, experienced a similar pendulum.
One week, she was the “brilliant leader” whose vision propelled the team; the next, she was “selfish” and “cold” when she declined extra work to prioritize her wellbeing.
These shifts are not reflections of inherent worth or fixed character traits. Rather, they are adaptive responses to relational threat, deeply encoded in nervous system patterns and somatic memories.
As clinicians like Buchheim and Diamond emphasize, these reactions arise from procedural memory—automatic, body-based learning shaped by early attachment experiences and ongoing interpersonal dynamics 30447730 . DOI: 10.1016/j.psc.2018.07.010.”>6.
When family members or colleagues perceive a boundary or assertiveness as rejection, it can trigger autonomic arousal: fight, flight, freeze, or fawn responses that fragment identity and fuel splitting.
The Nervous
System and the Dance of Splitting
At the core, splitting reflects a nervous system struggling to regulate perceived threat. The brain’s threat detection circuitry—primarily the amygdala and related limbic structures—alerts the body to potential abandonment or devaluation.
This triggers a cascade of autonomic responses designed to protect survival but often experienced as overwhelming shame, grief, or identity confusion [3,7]. For driven women like Grace and Monique, who navigate both professional and familial pressures, these responses may manifest as oscillations between idealization and devaluation within the family system.
Attachment theory provides a framework to understand how early
relational trauma or inconsistent caregiving creates vulnerability to
splitting. When safety is uncertain, the brain stores relational
experiences as somatic memories—nonverbal, sensory impressions lodged in
the body and brainstem 31454589. DOI: 10.1016/j.chiabu.2019.104127.”>18. These
memories can replay as intense emotional reactions, often outside
conscious awareness, shaping how women respond to perceived acceptance
or rejection.
From
Fragmentation to Integration: A Healing Map
The path toward healing involves cultivating relational
safety—a therapeutic environment where fragmented self-states can
be gently reprocessed and integrated. Marsha Linehan’s dialectical
approach models this balance: radical acceptance of all parts of the
self alongside clear, compassionate boundaries 25806661. DOI: 10.1001/jamapsychiatry.2014.3039.”>16.
This allows for greater reflective awareness, reducing emotional
reactivity and enabling intentional choice rather than automatic
defense.
Clinical research supports this integrative approach. Fonagy and
Luyten highlight the importance of mentalization, or the capacity to
understand one’s own and others’ mental states, as a key mechanism in
overcoming splitting and fostering stable identity 19825272. DOI: 10.1017/S0954579409990198.”>7. Likewise,
Maercker et al. emphasize trauma-informed interventions that address
somatic memory and autonomic dysregulation to restore coherence in
self-experience 35780794. DOI: 10.1016/S0140-6736(22)00821-2.”>3.
Below is a practical framework for moving from splitting toward
integration, tailored for driven women navigating complex family and
professional dynamics:
| Stage | Focus | Tools & Practices | Outcomes |
|---|---|---|---|
| 1. Recognize & Validate | Identify splitting patterns and emotional triggers | Mindful self-observation; journaling emotional shifts; psychoeducation on nervous system responses [6,16] |
Increased self-awareness; reduced shame and self-blame |
| 2. Create Relational Safety | Establish environments—therapeutic or relational—where vulnerability is met with acceptance |
Trauma-informed therapy; safe relational boundaries; support groups |
Reduced autonomic arousal; enhanced trust and connection |
| 3. Mentalization & Reflection | Develop capacity to hold complex views of self and others | Reflective dialogue; mentalization-based therapy techniques [7,16] |
Integration of fragmented self-states; decreased black-and-white thinking |
| 4. Somatic Regulation | Address body-based memories and autonomic dysregulation | Somatic experiencing; breathwork; polyvagal-informed practices [3,14] |
Improved emotional regulation; embodied sense of safety |
| 5. Build Resilience & Intentionality | Cultivate adaptive coping and balanced self-care | Dialectical behavior therapy skills; boundary-setting coaching; self-compassion exercises |
Empowered decision-making; stable identity and relationships |
Bridging to Your Path
Forward
For women like Grace and Monique, this journey is not linear but
iterative—each step deepening self-acceptance and relational attunement.
If you recognize these patterns in your own family or professional life,
know that healing is possible. It begins with compassionate curiosity
about the nervous system’s wisdom and a commitment to nurturing
relational safety
Grace and Monique: Navigating the Turbulence of Splitting in Family and Work
Grace, a senior engineer, was long cast as the “golden child” within her family system. Her technical brilliance and tireless work ethic were sources of pride and idealization. Yet when Grace first set a firm boundary—declining to take on extra weekend work to preserve her mental health—the family’s perception shifted abruptly.
She became “difficult,” “selfish,” even “ungrateful.” This sudden reversal is a classic example of splitting, where loved ones oscillate between idealization and devaluation in response to perceived threats to established relational roles.
Grace’s boundary challenged implicit expectations, triggering threat detection systems wired to preserve attachment bonds, but which misread autonomy as abandonment or betrayal [7,8].
Similarly, Monique, an equity partner at a prestigious firm, experienced the sharp edges of splitting in her professional and personal life. One week she was celebrated as brilliant and indispensable; the next, criticized as selfish and overly ambitious.
This flip in perception often left Monique questioning her own worth and identity, caught in the exhausting cycle of proving herself yet fearing rejection. The nervous system’s autonomic arousal—heightened fight/flight/freeze/fawn responses—amplified her internal turmoil, with shame and grief layering beneath the surface [6,10].
Monique’s experience echoes findings from Fonagy and Luyten (2009) and Bozzatello et al. (2021), who emphasize how unstable self-concept and relational safety deficits fuel these oscillations [7,5].
The Nervous System’s Role
in Splitting
Splitting is not simply a cognitive distortion; it is deeply rooted
in the nervous system’s survival mechanisms. When family members or
colleagues perceive a boundary or action as a threat, their attachment
systems activate implicit procedural memories—often somatic or
body-based—associated with past relational trauma or loss [3,18]. These
autonomic reactions can manifest as sudden shifts in emotional tone,
from warmth and admiration to coldness or hostility.
In Grace’s case, her family’s nervous systems likely registered her
boundary as a rupture in the expected relational pattern, triggering
defensive protective responses. Similarly, Monique’s colleagues and family
may unconsciously oscillate between celebration and criticism as a way
to manage their own discomfort with her assertiveness and independence.
These patterns perpetuate cycles of relational instability and identity
confusion, reinforcing shame and grief that remain unprocessed.
Toward Relational
Safety and Integration
Healing these splitting dynamics requires cultivating relational safety and nervous system regulation. Drawing on the work of Maercker, Cloitre et al. (2022) and Linehan et al. (2015), trauma-informed approaches such as dialectical behavior therapy (DBT) and somatic experiencing offer pathways to stabilize affect, tolerate ambivalence, and build integrated self-concepts [3,16].
When Grace and Monique learn to track their autonomic cues and engage in self-compassionate boundary-setting, they can disrupt the binary “perfect/terrible” narrative.
Attachment-informed therapy highlights the importance of validating
both the vulnerable and assertive parts of self, fostering resilience
and intentionality in relationships [6,7]. Over time, family members and
colleagues can also learn to regulate their nervous systems, shifting
from reactive threat responses to curiosity and connection. This
relational attunement softens black-and-white thinking and opens space
for nuanced appreciation of complex human behavior.
Grace and Monique: When Boundaries Meet Splitting
Grace, a senior engineer, had long been the family’s “golden child,” her achievements woven into a narrative of unwavering pride. Yet when she voiced a clear boundary around weekend work emails, the family’s perception shifted sharply. Suddenly, Grace was “difficult” and “selfish,” her previous accomplishments overshadowed by this one moment of assertiveness.
Similarly, Monique, an equity partner known for her strategic brilliance, found herself alternately celebrated as a visionary and criticized as “too focused on her own success.” These shifts illustrate splitting as a dynamic rooted in nervous system threat detection and attachment patterns: when Grace and Monique acted outside expected roles, family members’ implicit procedural memories triggered autonomic arousal, activating fight, flight, or freeze responses [7,8].
From a clinical perspective, splitting in these contexts is less about the individuals’ actions and more about relational safety—or the lack thereof. Buchheim and Diamond (2018) emphasize how relational attunement can help families move beyond black-and-white thinking by fostering curiosity instead of reactivity 30447730 . DOI: 10.1016/j.psc.2018.07.010.”>6.
When family members are caught in threat-driven cycles, shame and grief can intensify, reinforcing rigid perceptions and identity fractures. Over time, these patterns can erode connection and deepen isolation for both the boundary-setters and those reacting to the perceived “betrayal.”
Yet there is hope. With intentionality and therapeutic support,
families can learn to regulate their nervous systems together, shifting
from reflexive threat responses toward compassionate engagement. This
process softens splitting and invites a more nuanced appreciation of
complexity in human behavior. Grace and Monique’s experiences are
invitations to explore relational safety—not as a fixed state but as an
evolving balance.
If this resonates, Balance After the Borderline
offers a roadmap for cultivating this attunement and reclaiming
connection beyond splitting. It’s a journey toward integration, where
boundaries and belonging coexist without contradiction.
The Deeper Repair
Navigating the turbulent waters of splitting within family systems
often leaves you feeling fragmented—perfect and cherished one moment,
then misunderstood or even vilified the next. This experience is not
simply about interpersonal misunderstandings; it is deeply rooted in how
our nervous system processes threat, attachment, and identity.
Understanding this biological and psychological interplay opens a path
toward embodied recovery, fostering relational safety and authentic
self-integration.
Clinical Foundations: Splitting Through a Nervous System Lens
Splitting is clinically understood as a defense mechanism frequently
observed in individuals with borderline personality organization, where
experiences and relationships are polarized as “all good” or “all bad”
34630181. DOI: 10.3389/fpsyt.2021.721361.”>5. This
polarization reflects underlying difficulties in affect regulation and
self-cohesion, often stemming from early attachment disruptions 19825272. DOI: 10.1017/S0954579409990198.”>7. The
nervous system, especially the autonomic branch, plays a critical role
in this dynamic.
Dr. Stephen Porges’ Polyvagal Theory elucidates how our autonomic
nervous system (ANS) modulates safety and threat detection 17659821. DOI: 10.1016/j.bandc.2006.05.007.”>14. When
relational cues signal safety, the ventral vagal complex promotes social
engagement and emotional regulation. However, perceived threat triggers
defensive survival strategies—fight, flight, freeze, or fawn—mobilized
by sympathetic or dorsal vagal pathways. In families marked by
splitting, these survival responses are repeatedly activated,
reinforcing polarized perceptions and reactive behaviors.
Attachment, Procedural Memory, and Somatic Imprints
Early attachment relationships form the blueprint for our emotional
regulation and interpersonal expectations 19825272. DOI: 10.1017/S0954579409990198.”>7. When
caregivers alternate between warmth and rejection, the child’s nervous
system encodes these contradictory signals as somatic and procedural
memories—nonverbal, body-based imprints that shape automatic responses
in adulthood 30447730. DOI: 10.1016/j.psc.2018.07.010.”>6. These
implicit memories bypass conscious awareness but influence feelings of
shame, grief, and identity confusion that often underlie splitting
dynamics.
Dr. Peter Fonagy and Mary Target’s work on mentalization highlights
the importance of developing the capacity to understand one’s own and
others’ mental states to interrupt these automatic loops 38214629. DOI: 10.1002/wps.21156.”>2. Without this
reflective function, individuals may unconsciously enact splitting as a
way to manage unbearable ambivalence and threat.
Embodied Recovery: Reclaiming the Body’s Wisdom
Healing splitting within family systems requires more than cognitive
insight; it demands somatic engagement to recalibrate the nervous system
and foster relational safety. Embodied recovery practices invite you to
reconnect with your body’s signals and regulate autonomic arousal.
1. Mindful Body Awareness
Regular mindfulness practice that emphasizes noticing bodily sensations
without judgment cultivates interoceptive awareness—a key to recognizing
early signs of autonomic dysregulation 24534643. DOI: 10.1016/j.cpr.2014.01.007.”>13. For
example, gently scanning the body to identify tension, heart rate
changes, or breathing patterns can help you catch the onset of
fight/flight or freeze responses before they escalate.
2. Polyvagal-Informed Breathwork
Engaging in slow, deep, diaphragmatic breathing stimulates the ventral
vagal pathway, promoting parasympathetic activation and a sense of calm
17659821. DOI: 10.1016/j.bandc.2006.05.007.”>14. This
physiological shift supports social engagement and reduces the intensity
of splitting-driven emotional swings.
3. Grounding and Movement
Simple grounding exercises, such as feeling your feet firmly on the
floor or performing gentle yoga, anchor you in the present moment and
counteract dissociation or freeze responses 31574104. DOI: 10.1371/journal.pone.0223038.”>12.
Movement also aids in releasing somatic memories stored in the body,
allowing procedural patterns to soften.
4. Safe Relational Repair
Reestablishing relational safety involves practicing vulnerability and
authentic communication within a trusted relationship or therapeutic
setting 32304101. DOI: 10.1111/famp.12537.”>8. Here, the
nervous system learns new patterns of connection, replacing the old
threat-triggered splitting with nuanced relational experiences.
Navigating Shame and Grief with Compassion
Shame often underlies splitting experiences, as the self struggles to
reconcile conflicting internalized messages about worthiness and
belonging 30729325. DOI: 10.1007/s11920-019-0996-1.”>10.
Recognizing shame as a protective emotion rather than a fixed defect
allows for compassionate self-inquiry.
Similarly, grief is a natural response to the loss of an idealized
family image and the fractured sense of identity that splitting creates
35780794. DOI: 10.1016/S0140-6736(22)00821-2.”>3.
Mourning these losses with kindness can open space for new narratives
that integrate complexity and imperfection.
Integrating Identity Beyond Polarization
Splitting fractures identity into rigid categories, making it
difficult to hold contradictory emotions or traits simultaneously. The
therapeutic goal is to cultivate a coherent sense of self that embraces
complexity and fluctuating experiences 25806661. DOI: 10.1001/jamapsychiatry.2014.3039.”>16.
This integration is supported by developing mentalization, emotional
regulation skills, and secure attachment patterns.
Dr. John Gunderson, a pioneer in borderline personality disorder
research, emphasized that treatment success depends on creating a
therapeutic environment that balances acceptance and change—validating
the person’s experience while gently challenging splitting patterns 25806661. DOI: 10.1001/jamapsychiatry.2014.3039.”>16.
This balance fosters resilience and a more stable identity.
Pathways to Deeper Repair
If you recognize these patterns within yourself or your family, you
are not alone—and there is hope for transformation. The journey toward
balance after borderline experiences is multifaceted, involving both
clinical support and embodied practices.
- Balance After the Borderline offers a structured
pathway to reclaim emotional regulation and relational harmony after
splitting dynamics have taken their toll. - Parenting Past the Pattern supports parents in
interrupting intergenerational splitting cycles, fostering secure
attachment for the next generation. - Fixing the Foundations dives into rebuilding core
emotional and nervous system resilience, essential for sustained
repair. - Engaging in Therapy with Annie provides a
personalized, trauma-informed approach to unraveling splitting in your
unique story. - For ongoing learning, Learn and the
Newsletter offer evidence-based insights and practical
tools. - Curious about where you stand? Take the Quiz to
explore your relational patterns and readiness for change.
Final Thoughts
Splitting in the family system reflects a deeply embedded survival strategy shaped by early attachment, autonomic arousal, and somatic memory. Healing demands a shift from polarized survival modes to embodied integration—a process of reclaiming your nervous system’s innate capacity for safety, connection, and complexity.
By cultivating mindful awareness, engaging the body, and nurturing relational safety, you can move beyond the cycle of perfect versus terrible and toward a more compassionate, whole self.
References
38214629 . DOI: 10.1002/wps.21156.”>2 Leichsenring, Fonagy et al. World Psychiatry 2024 PMID 38214629 DOI 10.1002/wps.21156 35780794 . DOI: 10.1016/S0140-6736(22)00821-2.”>3 Maercker, Cloitre et al. Lancet 2022 PMID 35780794 DOI 10.1016/S0140-6736(22)00821-2 34630181 . DOI: 10.3389/fpsyt.2021.721361.”>5 Bozzatello et al. Front Psychiatry 2021 PMID 34630181 DOI 10.3389/fpsyt.2021.721361 30447730 .
DOI: 10.1016/j.psc.2018.07.010.”>6 Buchheim & Diamond, Psychiatr Clin North Am 2018 PMID 30447730 DOI 10.1016/j.psc.2018.07.010 19825272 . DOI: 10.1017/S0954579409990198.”>7 Fonagy & Luyten, Dev Psychopathol 2009 PMID 19825272 DOI 10.1017/S0954579409990198 32304101 . DOI: 10.1111/famp.12537.”>8 Guillén et al. Family Process 2021 PMID 32304101 DOI 10.1111/famp.12537 30729325 .
DOI: 10.1007/s11920-019-0996-1.”>10 Florange & Herpertz, Curr Psychiatry Rep 2019 PMID 30729325 DOI 10.1007/s11920-019-0996-1 31574104 . DOI: 10.1371/journal.pone.0223038.”>12 Steele et al. PLoS One 2019 PMID 31574104 DOI 10.1371/journal.pone.0223038 24534643 . DOI: 10.1016/j.cpr.2014.01.007.”>13 Lazarus et al. Clin Psychol Rev 2014 PMID 24534643 DOI 10.1016/j.cpr.2014.01.007 17659821 .
DOI: 10.1016/j.bandc.2006.05.007.”>14 Austin, Riniolo & Porges, Brain Cogn 2007 PMID 17659821 DOI 10.1016/j.bandc.2006.05.007 25806661 . DOI: 10.1001/jamapsychiatry.2014.3039.”>16 Linehan et al. JAMA Psychiatry 2015 PMID 25806661 DOI 10.
Related Reading and PubMed Citations
Notes on Books and Textbooks Informing the Draft
This draft is informed by Marsha Linehan, PhD, on dialectical
behavior therapy; Peter Fonagy, PhD, and Patrick Luyten, PhD, on
mentalization; Diana Fosha, PhD, on experiential relational repair;
Judith Herman, MD, on trauma and recovery; Bessel van der Kolk, MD, on
somatic memory; Dan Siegel, MD, on interpersonal neurobiology; Stephen
Porges, PhD, on autonomic regulation; Murray Bowen, MD, and Salvador
Minuchin, MD, on family systems; Donald Winnicott on holding
environments and the false self; and Harriet Lerner, PhD, on changing
family dances.
Q: How do I know if splitting in family systems applies to me?
A: If the pattern keeps repeating in your body, relationships, work, parenting, or private inner life, it is worth taking seriously.
Q: Can insight alone change this?
A: Insight helps you name the pattern. Lasting change usually also requires nervous-system regulation, relational repair, grief work, and repeated new experiences.
Q: Is this something therapy can help with?
A: Yes. Trauma-informed therapy can help when the pattern is rooted in attachment wounds, chronic shame, fear, or relational trauma.
Q: Could a course or coaching also help?
A: Sometimes. Courses and coaching can be powerful when the structure is clinically sound and matched to your level of safety, support, and readiness.
Q: What should I do first?
A: Start by naming the pattern without shaming yourself. Then choose the support structure that gives your nervous system enough safety to practice something new.
For a broader map, read Annie’s guides to relational trauma recovery, nervous system dysregulation, childhood emotional neglect, trauma bonds, narcissistic abuse recovery, therapy with Annie, executive coaching, and Fixing the Foundations.
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Annie Wright, LMFT
LMFT · Relational Trauma Specialist · W.W. Norton Author
Helping ambitious women finally feel as good as their résumé looks.
Annie Wright is a licensed psychotherapist (LMFT #95719) and trauma-informed executive coach with over 15,000 clinical hours. She works with driven, ambitious women — including Silicon Valley leaders, physicians, and entrepreneurs — in repairing the psychological foundations beneath their impressive lives. Annie is the founder and former CEO of Evergreen Counseling, a multimillion-dollar trauma-informed therapy center she built, scaled, and successfully exited. A regular contributor to Psychology Today, her expert commentary has appeared in Forbes, Business Insider, Inc., NBC, and The Information. She is currently writing her first book with W.W. Norton.
