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...The Monogamy Gap: Men, Love and the Reality of Cheating by Eric Anderson – review

Anderson sees regular casual sex with a variety of people (which he recommends) as different from affairs (involving dating and romance), which he regards as emotional betrayal. This distinction may apply among gay men, where impersonal and spontaneous sex is not uncommon, but most heterosexual wives and girlfriends would question this finesse – as even he admits in several of his anecdotes about men who were caught in the act by their enraged girlfriends.