It is tough to live in the limbo that you have been living in. You deserve much better. You have to let him go completely for now. Cut off all contact and protect yourself legally. You know that you have done everything possible that you could have to save the marriage. He is making choices, bad choices but he is still responsible for them. You have to step back, love yourself and those children.
Hugs Trusting
Me: 46 H:44 Together: 25 years Married: 20 years Separated: 11-30-06 Divorced 12-21-07 OW: EA began 2005 PA began end of 2006 3 children,20, 16, 6 ex asked for forgiveness 01/16/11