Women are more jealous of a partner's emotional investment in another relationship whereas men are more jealous of a partner's sexual infidelity.

Question

Quizplus · Accepted Answer

Research in evolutionary psychology suggests that women are more likely to be upset by a partner's emotional infidelity, as it may signal a diversion of resources and commitment. Men, on the other hand, are more concerned with sexual infidelity, possibly due to concerns about paternity certainty.

Women Are More Jealous of a Partner's Emotional Investment in Another