Hi Nellie,
Everyone here has given you such good advice and support, not sure I can add anything more. I just wanted you to know that you're in my thoughts and prayers. It's not fair to you with all you've been through, but unfortunately life is not fair a lot of times. I'm hoping he's just going through a momentary lapse of sanity and realizes what's at stake here and what he could lose (you). As Gary said, take it one day at a time. My gut feeling tells me he will come back. Hang in there Nellie.
Hugs,
Shelley