Do forgiveness and conflict tactics (compromise, aggression, and avoidance) predict effective arguing and relationship quality? Using 92 Italian couples their own relationship quality. For both men and women, negative responses to conflict (unforgiveness, aggression, and avoidance) overlapped and jointly predicted self-reported and partner-reported relationship quality, directly and indirectly via effective arguing. Positive responses investigated (benevolence and compromise) did not overlap for either men or women. Men’s positive responses to conflict uniquely predicted self-reported and partner-reported relationship quality via effective arguing, whereas women’s positive responses did not predict them independently of the male partner’s tactics.