why do we still cheat?

I realised during a night out last summer that none of the three women I was chatting with shared the same idea of what constituted cheating. All of us were in monogamous relationships, two with men and two with women, but each had a different impression of what counted as infidelity. The one who had been married for 10 years said she didn’t care or want to know unless penetration was involved. One said she considered watching porn cheating, a position so at odds with her trendy…