I've been cheated on and it wasn't the act itself that broke my heart, it was the complete and irreparable shattering of the trust I'd allowed myself with that bastard.

I didn't care who it was he slept with or why. What I could not stand, and what physically sickened me, was that he'd taken my trust, used it and abused it and then expected me to take him back.

I can not fathom why someone would cheat. I mean, if you want to be out getting laid by someone different every night, don't get into a relationship for Christ's sake. Or at least have the decency to break up with the person youre cheating on so that they can deal then move on.