I think pride is the biggest issue here. May be your H does not want to move in because of pride or afraid to be rejected. For the sake of your M, I would invite your H to be back if I were you.
I was thinking about my own situation. Sometimes pride and being afraid to get hurt are our biggest road blocks. My W and I both are too proud to make the first step. We end up in a stagnant situation for a long time. Just my 2 cents.
