"She seems to be moving on and just seems so okay with all this, that without me in the house, life is so much better and she doesn't miss me one bit. "
I'm sorry you are going through this. Maybe your wife feels that when she is on her own in the house, she isn't feeling ignored? Just a guess, but that may be the reason she thinks it feels better. It isn't that it feels GOOD, but that she doesn't feel that pain (like the old joke about hitting yourself with a hammer because it feels so good when you stop).
I don't have any wisdom on the joint custody or child support issues, hopefully someone else will be able to chime in on that.
