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We examined relations among Mating Effort, Mate Value, Sex and individuals' self-reported responses to imagined sexual or emotional infidelity. We asked participants to describe the (1) upset or bother (2) aversive emotional reactions (3) punitive impulses, and (4) punitive intentions they experienced in response to imagined sexual or emotional infidelity. The results replicated previously documented sex differences in jealousy. In addition, imagined sexual infidelity upset individuals higher in Mating Effort more than those lower in Mating Effort. Higher Mating Effort also predicted greater temptation, intention, and likelihood to engage in punitive behaviors in response to imagined sexual or emotional infidelity. We discuss these data in light of individual differences in relations between reproductive strategy and romantic jealousy. Additionally, we point to the importance of controlling for co-linearity between reactions to sexual and emotional infidelity, and the need for addressing related methodological problems within jealousy research

evolutionary psychology

Relations among Individual Differences in Reproductive Strategies, Sexual Attractiveness, Affective and Punitive Intentions, and Imagined Sexual or Emotional Infidelity