How do I know if my partner is cheating on me - evolution, sexuality and relationships
Last week I gave a talk on Personality and Sexuality. One question that cropped up was - "How do I know if my partner is cheating on me?" By chance the next morning there was a newspaper article attributing uncommitted sex, one-night stands, and acts of infidelity to genetics. Individuals who have frequent sex with multiple partners are psychologically different from those who have frequent sex with single partner (Simpson & Gangestad, 1991). This sociosexual difference places individuals in two groups Unrestricted sociosexual types , have a higher number of sexual partners, and one night stands. They have a permissive attitude to casual and uncommitted sex. Restricted sociosexual types , require greater closeness and commitment before sex with their romantic partner. Genetics plays an important role in sociosexuality Genes evolve to enhance survival of the species. From an evolutionary viewpoint females reproduce with a mate who will invest in ...