Sex addiction destroys trust in relationships, traumatizing the partner, the sex addict, and the family system. Betrayal is an attachment injury that topples the regulatory systems of both parties, and when relational trauma is left untreated, both parties and the family system will suffer. Thus, when acute emotional and physical symptoms become chronic, treatment becomes more difficult making the prognosis for restoring the coupleship poor. Rapid intervention and interactive regulation between the couple is essential for relational healing to begin immediately. Attunement, communication, and empathy (ACE) are the three-pronged stool that supports the long, and sometimes arduous journey to restoring trust.