You are not the reason that this didn't work. Your H clearly has problems with alcohol. I can't really give you much insight on the MLC...although my dad did have one about 5 years ago. His lasted around four years. We all walked on eggshells around him for fear of saying the wrong thing. He would usually get mad and then we wouldn't hear from him for days. He has come out of it and is back to the person that he was when I was a kid. I can tell he isn't happy though and is dissappointed in the choices he made during that time.
You can't live your life like that. You can't be afraid that you are going to say or do something that will send him running. I think what you have to decide now is whether or not you want to wait. It may take him a while. YOU deserve to be happy too and until he is ready to face his problems I don't think you will be happy with him. You shouldn't have to just bottle your issues.
You have a right to your feelings too and at some point those would have to be addressed. Don't feel stupid, this has nothing to do with you.