Sex & the Single Woman: Cheating?

What defines “cheating”?

In grade school, the epitome of cheating was sneaking the answers to a test behind the teacher’s back. Now, years later, it means so much more.

I know in my personal experience I have felt cheated on when a guy has kissed another girl. But I do think that the pain would have been lifted had the boy in question not lied to me . . . and continued to hook up behind my back. I guess in that case he hurt my trust and couldn’t give me his honesty.

I think that cheating can be even simpler than just kissing, or it can be even more complex. Where do we get these judgement from? What helps us define such a vital, yet broad term?

What do you think qualifies cheating?