LMG, gentle 2x4 coming here, be prepared. Stop with the feelings of being unwanted. Trust me, I understand where they come from, but that's not the reality. You hold your head up, you hear? Your H is the one who will be on the receiving end of any "shame" there may be.
Sir is right, you need to step up now. For yourself, for your kids. You start taking some control. The ideas about the mediator are good. Your H doesn't like seeing you strong and GAL because it frees him, btw. He likes seeing you strong and GAL because it is you. That's who you are. You don't have to give up all hope, but you have to detach. You have to, in as much as you can. You being strong is the best chance you have for you, your family and/or your marriage. You don't have to like this place, but you have to accept it.
Only you can pick yourself up and you are capable of this. Really.
Me: 42/H: 37 T: 10 years/M: 8 D9, S8 Bomb: 7.23.07 Separated: 1.20.08 D Final 3.19.09 Affair started in '05, found out parts in 11/07. They married 11.26.09