This study examines the association between couple implicit rules related to facilitating disclosure and marital quality with husband and wife romantic relational aggression as potential mediators. Couples (N-353 couples) who participated in the Flourishing Families Project, reported on their use of couple implicit rules related to disclosure. Results indicated that implicit rules for couple disclosure were positively related to marital quality for both husbands and wives. Those couples who reported more use of implicit rules related to disclosure were also likely to use less romantic relational aggression. In turn, both husband and wife romantic relational aggression was negatively related to their own as well as their partner's marital quality. Romantic relational aggression was a significant mediator between couple implicit rules for disclosure and marital quality for both husbands and wives. Implications for marital therapy are discussed.