There is hope. You have a right to be happy. The thing is that your H may not "get it" until you really are ready to call it quits. That is what happened to me.
Do what you need to do but realize that to completely quit may close off a great chance to make things better and make your M the one you really want. Which is better, no M or one that has survived the storm and is stronger for it? You may want to throw the bomb. Or at least bring up that you are considering D.
I'm afraid you're heading for that point of no return when you, like many WAS shut down. I really want to believe that if your H could really understand what you are feeling he would do what he needs to save the M. It may take some kind of a shock, a rock bottom moment for him to get it. That's sad, I know, but it's often the only way when the self-involved spouses (myself included) won't figure it out on their own.
If you can't get him to a MC, then find one for yourself. Even if it leads to D, you want to be healthy.
~Mark
Me: 38 W: 34 Together: 9yrs 1st M: may '03 1st D: april '08 1st bomb: june '08 remarried: oct '08 2nd bomb: aug '09 --(W asked for D one week into 3 mo. trial separation which was meant to save our M)