You will get more responses by posting to other people. There are only so many posts that show up in the first couple screens at a time, so it can be hard to get people to come to your posts. Posts to others get people to look for you.
Nothing about our sitch's is technically normal. I can't help but think that if his parents are doing what they are that they are a big part of why he is like he is.
My H doesn't technically have depression, although low testosterone can often manifest that way.
It is far too early to decide to give up on your M. You can work on detaching instead. You can't reason with him or beg or bargain to make this all better.
It will take a long time for things to get better, but they can. You can't change him, but you can work on you.
I recommend the Divorce Remedy book more than DB. I also created a post on recommended books. Read, learn, try to relax and focus on your children. They need you the most right now.
Me 45, H 46, S 23, M 26, Together 30, Bomb 6-2-08, S 6-19-08; H left 12-29-08. H home 12-09, Still MLC in 2012! Me- I have my big girl panties on. Bring it.