The current study explored the association among young adults' (N = 86) experiences of betrayal traumas (interpersonal trauma perpetrated by someone close) prior to age 18, psychological well-being, attachment styles, and romantic relationship function (i.e., dedication, relationship adjustment, and perceived partner respect). Based on betrayal trauma theory, we posited that participants' reports of betrayal traumas would be negatively related to their perceptions of respect from their partner but would not relate to their perceptions of relationship adjustment or dedication. Furthermore, we expected that the relationship between betrayal traumas and respect would be mediated by participants' attachment style and psychological well-being. Results identified a negative association between betrayal traumas and psychological well-being and a positive association between betrayal trauma and anxious and avoidant attachment. Betrayal traumas were also shown to be negatively related to partner respect and not significantly associated with dedication and relationship adjustment. Anxious attachment and psychological well-being were significant mediators for the relationship between betrayal traumas and perceived respect.