So, Pal, you're saying that all sex with your life partner involves more than the physical act itself? It's never recreational?

Secondly, perhaps I should get on the "This OP is an idiot" bandwagon to be more accomodating.

Failing that, I thought I might pose the "why is sex such a big deal" debate in with the "men are regarded more fondly than women when they cheat" debate.

Bottom line. All people who cheat do so because they are not getting something they want out of their relationship. Sex, intimacy, tennis, whatever. They want more than they are getting (aligning with my point on the 10s), so they seek it outside.

I'm not sure any of it is particularly reprehensible. Every person doesn't know how to deal with every situation in the most optimal way.