If he does come in, maybe try to act "as-if" none of this falling out has happened in terms of your PMA and positiveness. I think you can do this while keeping some self-protective boundaries in place, Jo, like no ML until greater commitment.
Think positive and playful for now. LostinLimbo's sitch in the Separated forum involves some similar issues of a controlling H and her positiveness/playfulness has moved him very close to coming home.