Parental Infidelity and the Shared Risk of Dysfunctional Triads, Enmeshment and Boundary Confusion

Although these responses sit at opposite ends of a spectrum—too much involvement or no involvement at all— often lead to similar outcomes.

Both increase the likelihood of risks to healthy happy thriving children into adulthood or healthy parent-child relationships:

• dysfunctional triads (triangulation)

  where a child becomes drawn into the emotional or relational space between parents, often feeling pressure—either in subtle or overt ways—to align with, support, or mediate between them. 

• boundary confusion, where the distinctions between parent and child roles become unclear, leaving the child uncertain about what is expected of them and what responsibility they hold within the family dynamic.

• emotional insecurity, where a child’s sense of safety, stability, and trust within their family environment is disrupted, often resulting in heightened vigilance, anxiety, or difficulty relying on caregivers for consistent support. 

• enmeshment, where emotional boundaries between parent and child become overly intertwined, and the child begins to carry, absorb, or respond to the parent’s emotional experience rather than being supported within their own.

  
  

In one, the child is too close to the pain.

In the other, they are too alone with it.

Neither position supports what children need most:

• clear boundaries

• emotional safety and

• guided understanding.

The evidence-informed therapeutic Middle Ground

The work is not choosing between openness or protection.

It is finding the middle ground:

• maintaining clear parent–child boundaries

• keeping adult content with adults

• while offering children enough clarity to feel safe, secure, and held

  
  

This includes helping children understand, in an age-appropriate way, that:

• they are loved by both parents

• their relationship with each parent remains secure

• and that even if aspects of the adult relationship change, their place in the family does not

This is where children remain children—not confidants, not emotional supports, not outsiders—but supported, informed, and protected within a stable relational structure.