Man I'm so sorry to hear that you are going through this crap but at the same time, I feel your strength and I admire how you are approaching this more with your head than with a wounded heart.
I think you got a good game plan. Apart from her outrageous behavior, she's lied to you so you can't trust her therefore, "going dark" as we call it around here is the best thing to do because mainly it insulates you from her behavior and once she 'rush' that she gets from this kid wears off, she will start to miss you.
Have you got a copy of Michele's book Divorce Remedy yet? If not, then I strongly recommend that you get it. If you have, read the chapter on infidelity. Her A started for a reason, you need to figure out what that reason is but if you give yourself 100% of the blame, them you have gone too far. Figure what you did wrong and what she has done wrong.
Quote: I think I'm going to have to go back to my lawyer now and get a legal separation and custody, because I don't want my daughter exposed to that environment.
That's a very sensible thing to do. Post back with how you go with this.