Using grounded theory methods, we examined coparenting relationships for 25 divorced mothers who experienced violence during their marriages. How well former husbands were able to differentiate, or keep separate, their parental and spousal roles emerged as central to coparenting dynamics and was partly related to type of marital violence. Linking differentiation to types of martial violence advances our theoretical understanding of variations in coparenting relationships after divorce. Results can be used to more effectively match divorcing parents with appropriate interventions.