i had to ponder this one a while. i think cheating is anything that involves physical contact. if it's only in your mind then it's ok, like looking at porn or having fantasies about someone else. i'm married and i have never felt upset about the porn my hubby looks at. and somehow i doubt it's my face he sees when looking at naked girls with huge boobs and beatuiful bodies. if i caught him jeking off to it i would be more likely to jump his bones than start a fight. conversely, if i caught him with another woman in the flesh i would tear them both limb from limb.