Please really try to take care of yourself through this. It isn't OK for H to jerk you around emotionally. I have no doubt that he is sincere about his pain and regret. BUT he doesn't get to rely on you for support. Those are his problems to work out in his own life. Right now, there is no R for the two of you to work out that makes resolving his feelings in the context of that R part of your job. If he shows through actions that he is seeking that kind of R with you, at that point it is up to you to consider whether or not you are interested. But no matter what happens, your job is always to protect yourself, own your choices, don't be a victim. Set some boundaries. Take good care.