Shell, I'm sorry you've come to this point. It appears your W is at the point of being completely selfish and trying to push your buttons so it's natural for you to have these reactions. It's interesting that she seems to be equating the kids with power or so it would seem.
My W and I made the decision early on in this that we would each be able to see the kids every day. When I agreed to that I thought she would be taking the kids and I couldn't stand the thought of seeing them as little as the law provides for. Now, it turns out that I have primary custody and have to put up with seeing her every day when she comes to visit them. As hard as it is, I try to go about my business just like she wasn't here but she always seeks me out. Still, knowing she't batsh*t crazy right now I try to be patient with her and would not try to keep the kids from her or her from them unless she posed a danger to them or, like you said, exposed them to her affair.
M 39 W 41 Married 18 years Together 21 D18 D10 S6 D filed May 16, 2011 Bomb Dropped May 18, 2011 D in process