(((((Sue)))))), You are right, you will be okay, more than okay, because you are a wonderful strong woman.
I think the best thing you can do as far as H and DD3 relationship goes, let him make the effort to bond with her. I think he needs to suffer the consequences. I know this hurts you to no end, but he is being so selfish, I think he needs to miss her and you.
Another thing to think about when he moves out, make sure you get a separation agreement. If he can afford to spend all of that money on concerts, he should be able to support his child!
Hugs,
Life's challenges are not supposed to paralyze you, they're supposed to help you discover who you are. -- Bernice Johnson Reagon