My H is the type to feel sorry for himself and built this up bigger than they ate, milking them for all they're worth.
I finally stopped letting myself be emotionally blackmailed and did what you're doing: I put up "the hand", figuratively and literally, and advised him I was not going backwards, only forwards. He could join me or get left behind.
After a couple of times, he got the picture. One can only apologize so many times and after that, it becomes sadistic on their part.
M:63 H:53 S:41, SS:28, SS:25, SD:23 M:15 T:16
Bomb:12/17/11, "I think we should go our separate ways." H moves to his mother's house, 4/1/12 12/21/12: H moves back home, piecing