@jespah,
True, but the kids won't benefit from an ugly, deceptive relationship between their parents.
If I'm the guy who originated this thread, I'm going for full custody (and possibley settling for less)
However, unless this thread has whacked him up-side the head, he will never do so.
If you have to ask advice about what to do when your spouse cheats on you twice, you are not likely to be firm and definitive in your response.
I'll give her the first trangression, but the second indicates she is selfish. There is no reason to think that someon who is so selfish as to betray her marital vows will be less so when it comes to her kids.