I get so lost when she actually comes to me to talk rationally and compliments me and starts crying. How do I deal with this appropriately? I xan't just walk away from that can I? I don't want to be cruel and heartless.
If you're done and want a D then this shouldn't be an issue. I don't see how it's heartless to say "I understand this is painful but these are the consequences of the road you chose, and I agree that it was necessary as our M wasn't good for either of us."
If you don't feel that way and you don't want D but instead want your W to end the A and work on your M...well, filing D as an ultimatum isn't likely to get you what you want.
If you don't have a DB coach I'd get one TODAY. You've been registered here a week and are already taking actions that will have lifelong consequences to your family out of anger. Not the legacy I'd wish for you but that's probably why your W sought out another man in the first place. Up to you if you want to keep on this path or choose another. Good luck.
Me:38 XW:38 T:11 years M:8 years Kids: S14, D11, D7 BD/Move out day: 6/17/14, D final Dec 15