Everyone's situation is different.

We always hear that old saw about "if he'll screw around on her he'll screw around on you." Maybe yes, maybe no.

My father met his second wife while he was still married to my mother. I was young and knew you weren't supposed to do things like that, but beyond that, I didn't know much else.

It was years later, after I became an adult, that I realized what had happened.

My mother is a fine person - but she has this habit of denying that there is ever a problem, especially if she happened to cause it.

My father told me - I told your mother there were changes that needed to be made, and if she was not willing to make them with me, I would make my own changes, and I guaranteed her she would not like them.

And by golly, he sure did. He gave her a chance, and she denied that there was any sort of a problem. He was willing to work through it, and she wasn't, because she didn't think there was anything wrong.

My father was crazy in love with his second wife. They had a great time during their marriage, and when she fell ill with cancer, he took care of her until she died. I have no doubt that he was completely faithful to her.

Relationships are funny things. Not all of them last forever as much as we would hope, or as hard as we might try.

You have to carefully examine your own situation and decide what the stakes are.