Butalbee,
While I agree with most of the advice here, I know, i was a fixer-upper myself, and it was a hard lesson I never learned until my husband came along. He really needed no fixing, except in his wardrobe and a few non-emotional things.
However...
I might add that, I realized, I was the one who needed the fixing. I would never be totally free from the WT if it had not been for him, he was such a pillar of strength when I needed it most. I remember there were times I would just curl up and cry, and he would lie there and simply hold me.
Maybe... you need to be there for him as a source of strength for him as he works out of this difficult situation. Maybe.
If you believe in God, I would put this matter to prayer and ask for his direct guidance. If not, still weigh matters carefully, you may be of help, and you may get your man still.
Just another side of things. you know your situation best. I do believe in God, and i will be praying for you, and him.
K