wantlove, I don't know your situation but I can promise you, your H knows how to get in touch with you. He's been living apart from you for a month you said; if he's in crisis it is just the beginning part of it. He's running right now; that is what they do best. I know it will be difficult to not worry about this right now, but try to focus on anything else if possible. Don't let yourself get sick; make sure you eat well and sleep when you can. This takes a huge toll on us physically. I don't have any answers to help you get him home, mostly because there aren't any. He isn't himself right now. That's as much of an answer as I can help you with. Be good to yourself right now, and your kids if you have them.
Most of us really marry only once. First love endures, even unto our dying day. And we never really divorce.