I think things like "I haven't cheated YET" and "I don't know if I would" are strange things to say for anyone in a serious relationship. That sounds like giving yourself the option of hurting your partner, and in the end yourself, in a horrible way.

I haven't cheated or been cheated on (as far as I know), in the classical meaning of the word...

Hi, BTW. First post from an old lurker....