Abstract
Abstract. A considerable proportion of the population experiences varying degrees of same-sex attraction. It has been proposed that men exhibit high tolerance to their partner’s same-sex infidelity, which allows such predispositions to exist in a relative high frequency in the population. On this basis, the hypothesis was tested that heterosexual men and women would differ in their tolerance level, with men exhibiting higher tolerance to same-sex infidelity than women. Evidence from an online sample of 590 heterosexual Greek-speaking participants provided strong support for this hypothesis. In particular, the vast majority of women exhibited low tolerance, while about one in two men exhibited high tolerance to same-sex infidelity. Furthermore, men and women exhibited higher tolerance to the same-sex infidelity of their long-term than of their short-term partners, with men exhibiting higher tolerance in the latter case. In addition, women exhibited low tolerance to opposite-sex and same-sex infidelity, but men exhibited low tolerance to opposite-sex infidelity, but much higher tolerance to same-sex infidelity.
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