I don't mean to hurt you here but I've got to ask this question. I know you are the LDW in this R, or at least were...I know you are trying to work on that but are having a hard time getting through to your H....his behavior is what's prompting my question.
Is there any chance there is OW in the picture now? His continued behavior of coming home very late, leaving very early (basically avoiding you) and sleeping on the couch leads me to wonder. You are now reaching out to your H trying to show him you are changing, or trying to change...but he's now pushing you away. It makes me wonder if he's not getting his needs met elsewhere and is now pushing you away because perhaps he'd feel he was cheating on the OW, with you.
It's possible there isn't another woman in the picture....but his behavior does make me wonder. Does he want to save your M? Or is he trying to avoid being the "bad guy" and force you to tell him to get out?