A couple of thoughts for you, Divorce is allowed for adultry through just about all Christian denominations and Judaism and you truly have been the victim of it, not like some who claim there was, just so they could get out of the marriage and still come to church. You are now physically protecting yourself, as with your husband's habits, there are many diseases he could bring home. If, by the grace of God you are restored, he should submit to a full panel of tests and provide you with the results as a precondition of you taking him back. This would probably humiliate him, but it should be REQUIRED.
Also, the Bible allows for divorce in the case of the unbelieving spouse, when initiated by them. Your husband has renounced his faith.
This does not change the fact that life is going to be tougher. Please do not get into another relationship for economic reasons or rebounding. You can hold out hope for your husband until he marries somebody else. However, by all standards you are free to find somebody else if you wished. That is your call alone.
You are in a much better position to be a good wife than you were five years ago, or even a couple of weeks ago. It will be your husband's choice if he wishes to take advantage of that, in others words, get himself fixed, ask for forgiveness and come back.
