When I read your posts, what strikes me is the anger and the blaming everything on your wife. I encourage you to stop focusing on what she did wrong and instead focus on what you did wrong.
There are several reasons for that.
Focusing on her faults and actions places you in the victim role, which isn't good for your mental health (and is also unattractive).
You can't control her, you can only control you, so it makes sense to focus your energy on the things you can control.
If you don't focus on you, you can't learn to be a better partner for your future relationships.
On another note--
How much time are you spending with your kids? Do you have a regular schedule for when they are with you?
Me: 44 H: 44 Kids: 20, 16, 16, and 10 Together/Married: 22 years H announced he was emotionally detached and considering D: 4/4/16 H announced he is going to try to stay and reconnect: 5/1/16