Won't stop affair. Wants divorce now.

[MrBond]

"I'm going full custody if this marriage go south."

Why? I don't see where your W was being a bad MOTHER. You have to learn to distinguish between your marriage and your daughter's relationship to both you and HER mother. Right now it sounds like you're doing it to play morality police.

"Starting to think this marriage is a wrap."

Every situation is different, and I can't tell you how many times we've heard the same thing from many WAS's who have had A's. The point is in what way have YOU been changing? It should be irregardless of what your W is doing.