Cheating is wrong, but...

Are there instances where cheating is a better option than divorce? I know there are going to be flames for this and I expect them. But I am interested in people who don't see the cheating situation as black and white. Or that the person who cheats is the devil and the person cheated on is a completely innocent victim.

One may say to a man whose wife no longer wants sex that he is breaking his vow to her if he cheats. Or that he wants his cake and eat it too. But what about the wife. Is she not breaking a vow in not taking care of the sexual needs of her spouse? Is she not having her cake and eating it too by being married but not having to provide sex for another person like a single person doesn't? And this goes for men who deny wives sex.

Is it better to break up a home and get a divorce for sexual reasons? If everything else in the marriage is perfect but sex. Oh you say, go without sex. Well, why doesn't the withholding spouse just put up and shut up? Or why doesn't the spouse who doesn't want the sex divorce their spouse giving them the opportunity to find a partner who wants a complete relationship? In my eyes, they are just as selfsih as a cheater. And it kills me that women/men witholding sex from thier spouses expect them to live a sexless existence for the rest of their lives because they don't want sex anymore.

Why is it okay to withold sex but the spouse who goes out to get their needs met is the only one in the wrong?

What say you?