Aww, I just read why it ended.
This one unfortunately sounds tough to remend. Religion and basic values are a very important part of making a marriage work, as I'm sure you realize. I would suggest at least attempting to get over this guy in the right way, (though its much tougher, you'll have a much better result in the end!)
Cry about it, write letters about it, tear them up, sleep, talk to friends, hot showers. Whatever it takes to make you feel better until it fades a little. I find this to be the most effective way of moving on. Just trudging through every day. No emails or anything to the ex, at any cost. Take care of yourself and be easy on yourself, love yourself and realize that this is a tough time for you.
Even if you do decide to be together in the end, I think that right now you need to take the time to heal, become healthy again, and find out what you really need in a marriage, and take the space so that you can take a step back and become rational and objective again. You may find that he's not exactly what you were looking for.. and you'll find someone even more perfect than you ever imagined! (I know you don't believe that right now.)