Sending big hugs and peace to you! You're doing just fine-keep your head down and don't engage if he tries-which he WILL try! Yes-you did everything you could to make the relationship work-he did not. His burden to bear, not yours.
I second Hopeful when I say my ex blames everything and everyone for our divorce except that he was a raging alcoholic with disgusting behaviors. Oh well-I'm just glad I'm not his wife anymore-that became a liability.
Peace to you!