I have to agree with almost everything that Blu said. He's done. He's completely checked out. Your best bet at saving your M is to let him go. Drop the rope. Cut him loose. You don't have to actually divorce him but you need to emotionally divorce him and begin to move on with your life. Become a strong, confident woman. Right now, you are not. Its imperative that you become that woman and you can't do it with him. You've got to find your own way. You've got to find it within yourself to be "enough" on your own. I don't know about an A. I lean more towards a MLC and if that's what it is, you are in for a long haul based on what I've read. Regardless, he's gone for the time being. And he may never come back. The sooner you wrap your head around that painful truth, the sooner you can truly begin to take care of yourself and become the woman you need to be. Your inner fire is extinguished. You need to figure out how to light that again. He's got his own crap to work through. Once you become a woman on fire and if/when he gets his head out of his a$$, then you can worry about fixing your M. Both of things need to occur before that can happen and right now, neither of those are happening. Start with you. You know what your issues are. Work on those and forget about him. Dump him and find a life where you are happy with yourself. Then and only then will you be ready to reenter this relationship.
Me: 48 y/o W: 47 y/o Together: > 20 yrs BD: Dec '15, then S 2nd BD: Mar '16, then I filed for D April '16: started piecing