Whether a bisexual guy is more concerned with sexual or emotional infidelity depends on whether he's dating a man or a woman, new research finds.
The study bolsters the idea that jealousy is evolutionarily designed: Men tend to worry about sexual infidelity, because they want to know that their female partners' children are their own, and women tend to worry about emotional infidelity, stemming from a time when they had to worry about men allocating resources to their relationship.
[5 Myths About Gay People Debunked] "Bisexuals kind of fit both aspects of this jealousy," Scherer told Live Science.
"You can make predictions of what kind of jealousy they may be distressed by depending on whom they're dating." Cheating hearts Scherer and his colleagues recruited 134 self-identified bisexuals from lesbian, gay, bisexual and transgender organizations across the country to fill out an Internet questionnaire.
The survey asked the participants to imagine being cheated on and to identify the gender of the cheating partner.
They then had to choose whether they would be more upset about the sexual aspects of the cheating or the emotional betrayal.
Forty-eight of the participants were bisexual women dating men, 36 were bisexual women dating women, 27 were bisexual men dating women and 23 were bisexual men dating men.
The answers showed that the men dating women were far more likely than other groups to be most stressed by sexual infidelity.
Among bisexual men dating women, 49 percent said they would be most bothered by the sex.
For comparison, only 16 percent of men dating men said that the sex would bother them more than the emotional betrayal.
Women's concerns about infidelity weren't as affected by their partner's gender.