I was.
Both of us were unsaved. He was from Asia and really didn't have a belief system apart from whatever is taught there. I knew about God but rejected Christianity.
Things changed during the marriage from a few different factors. I ended up in Christianity, he ended up being very disappointed that the person he married no longer existed.
Tough situation. We're divorced now, although I'm still not sure how to view it. He isn't with anyone else and neither am I. He wants to be remarried but I don't see the point...nothing has changed with either of us as far as our beliefs and actions and we'd still have the same old problems.
I don't envy you your situation, but do hope that things can work out for the best and that you can be a good witness to him and that he'll appreciate the change in you instead of fighting against it. A new life is hard enough, but nearly impossible when the one you love the most isn't supportive.
Chrys