The relations between psychopathy, romantic relationships, and well-being were investigated in 431 undergraduates. For both males and females, various components of romantic relationship quality were positively correlated with subjective well-being (SWB) and negatively correlated with ill-being. However, only for females was overall romantic relationship quality positively correlated with life satisfaction, happiness and positive affect, and negatively correlated with negative affect and depression. High levels of psychopathy were found in 23.1 % of males and 7.4 % of females. Psychopathy accounted for significant variance in overall relationship quality (7.0 %), commitment (14.1 %), satisfaction (9.3 %), romance (10.7 %) and trust (6.4 %) in romantic relationships for males and in overall relationship quality (3.2 %), commitment (5.3 %), and trust (5.9 %) for females. Romantic relationship quality was able to mediate the relations between psychopathy and SWB and this mediation was moderated by gender.
