Cindy,
What I can tell you is that men who are depressed and do not have a handle on their emotions can sometimes do exactly what your H is doing: losing himself in a new relationship that he believes will fix him. It won't. He might be on a new "high" that alleviates the negative feelings that losing his job brought about. Now he's going to push you out of the way to make room for what he thinks will be a great new life.
I don't tend to label these situations anymore. Call them what you want: QLC, MLC, identity crisis. It doesn't matter, because even if you label it, that doesn't mean there exists a step-by-step precision to follow in order to save the relationship. Everyone is different.
Don't take your ring off unless you wish to; totally up to you.
Best bet is the standard: don't beg or plead, because that never works. State your boundaries. If he is pushing for a divorce, make an appt. to see a lawyer to find out what your legal rights are. It doesn't mean you have to agree to a divorce at all, but you do need to be smart and protect yourself. He is likely to do and say things you wouldn't expect.
Hang in there.


Most of us really marry only once. First love endures, even unto our dying day. And we never really divorce.