What is it that makes people decide it is "OK" to sleep with someone else's boyfriend/girlfriend/wife/husband?
I know someone who, in all other ways I thought was a good person. But she had an affair with a married man. You can't be a good person if you do that surely?
Or can you still be a good person but make bad choices?
What is it that makes somebody who says "no I'd never have an affair with someone else's partner" change their mind and do something like that?
Is it low self esteem? Power? Knowing it can't go anywhere? (Although on that last one, some people do it and try to convince the other person to leave their partner, so it can't be due to that in those cases)
Just saw a thread on here which started me thinking about it and got me wondering again.