This exploratory study posited that being in an insecure marriage would increase marital conflict and perceived relational aggression when the couple is experiencing economic constraints. The cross-sectional design assessed two groups of marriages: secure and insecure. A structural equation model using multiple group comparison tested the effect of each type of marriage, controlling for husband and wife education, number of children, and length of marriage. Results indicated that husbands who identify as insecure experience greater marital conflict and perceive their spouses to be more psychologically aggressive. There was also evidence of a cross-lag effect indicating husbands' perceived marital conflict positively influences wives' perceptions of greater spousal psychological aggression for insecure couples, but not secure couples. This is the first study to use attachment as a moderating variable in the family stress model. Future research should look to include greater measures of attachment, with a focus on longitudinal designs. Implications are also discussed.