AITA for setting a boundary refusing to speak to my baby daddy’s girlfriend about his child support?

Four years of silence and absence weighed heavily on a mother whose two autistic boys needed more than just fleeting gestures of support. With no help in sight, she fought tirelessly to secure the child support they deserved, only to face a staggering debt owed by their absent father—an emotional and financial burden that deepened with every ignored obligation.

When the long-overdue consequences finally caught up to him, the father’s desperate attempts to evade responsibility revealed a tangled web of avoidance and control. Through broken communication and intrusive interference, the mother stood firm, navigating a painful confrontation that underscored the raw reality of their fractured family.

AITA for setting a boundary refusing to speak to my baby daddy’s girlfriend about his child support?

According to clinical psychologist and relationship expert Dr. Henry Cloud, co-author of the book Boundaries, healthy boundaries are essential for keeping out what is harmful while letting in what is good. In high-conflict co-parenting dynamics, establishing clear limits on who is allowed to participate in financial and parental discussions is vital. The ex-partner’s failure to provide support for four years, followed by his girlfriend’s immediate attempt to take over the FaceTime conversation, represents a severe boundary violation. This intrusion is compounded by the girlfriend’s history as the mother’s former best friend, which adds a layer of personal betrayal to the conflict.

The girlfriend’s aggressive communication, including sending long voice messages and hostile texts, is an attempt to control the situation and shield the father from his financial accountability. By refusing to engage with the girlfriend and limiting discussions strictly to the father, the mother successfully protects her own emotional well-being and maintains focus on the core issue of child support. Her decision to document all interactions by taking screenshots and screen recordings is an excellent protective measure that provides objective evidence of the harassment.

The mother’s actions were entirely appropriate and professionally sound. To handle similar situations in the future, she should transition all communications to a court-approved parenting application, such as OurFamilyWizard. This platform restricts communication solely to the parents, automatically documents all messages for legal review, and prevents third parties from interfering in parental responsibilities.

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Carl is a deadbeat father. If he or is girlfriend need feel a need to discuss child support, they should talk to his lawyer. Make sure to save all of their communications to you.

While I understand that his wage garnishment probably affects her quality of life, that’s for her to discuss with *him*. It is nothing to do with you. Not your problem, not your fault.

But don’t even talk too Carl about it. Just go through the courts. He’s only going to try to get it reduced or to try to stop paying. Going no contact with him and blocking her solves this whole problem.

The mother is emotionally exhausted from raising two autistic children alone with virtually no financial or physical help from her ex-partner. Her decision to legally enforce child support represents a necessary action to secure her children’s livelihood, which directly conflicts with her ex-partner’s avoidance of responsibility and his girlfriend’s intrusive attempts to control the situation.

Should the mother continue to strictly enforce her communication boundaries by refusing any contact with the new girlfriend, or should she find an alternative way to address the financial dispute to ensure her children receive the support they are owed?