01/11/2026
❤️ When parents commit infidelity, it doesn’t just damage their marriage, it can fracture the bond with their children permanently. Adult children often cut ties because the betrayal poisons their sense of trust and identity. Here’s how it plays out:
Psychology Breakdown of Infidelity as a Trigger
- Trust Collapse
Children grow up believing their parents are the “foundation.” Infidelity shatters that foundation. The brain interprets it as “If you can betray your partner, you can betray me too.”
- Moral Contamination
In dark psychology, betrayal spreads like a virus. The child sees the cheating parent as morally contaminated, someone who rewrites loyalty rules for selfish gain. Cutting off becomes a way to avoid being infected by that same dishonesty.
- Gaslighting & Cover-Ups
If the parent lies, denies, or manipulates the narrative, the child experiences double betrayal: first the act, then the deception. This forces the child into survival mode, choosing distance over constant reality distortion.
- Identity Damage
Infidelity often humiliates the other parent. Adult children feel that pain as their own, because family identity is shared. In layman’s terms: “You didn’t just cheat on mom/dad, you cheated on us as a family.”
- Unrepentant Behavior
If the cheating parent refuses accountability, the child’s subconscious labels them as a predator of trust. Dark psychology frames this as a permanent threat, making “no contact” the safest option.
Why Infidelity Cuts Deeper
Infidelity isn’t just about s*x, it’s about betrayal of loyalty, safety, and family identity. For adult children, that betrayal flips the same survival switch as abuse or manipulation. The cutoff becomes symbolic: “I won’t let your betrayal define my life."