My wife and I have differing beliefs - she is a practising Catholic, I am an atheist, but this is not an issue for us. I had no objection to our children being raised as Catholics, we attend Mass every Sunday as a family - i enjoy the atmosphere of the church, if not its beliefs. It appears to be more of an issue for you. If you cannot simply agree to differ in your perspectives, then this is going to be a stumbling block. You need to talk it out seriously, and see if he is able to accomodate your views within the relationship. I'm afraid it's the dreadfully superior "I've got something you don't have, and you are lacking as a human being becase of it ...." attitude that Christians have that has always been my main stumbling block. Arguing the semantics of evolution is pointless - belief in God is based on faith, which by definition is not provable. Have a good talk, and see what shakes out. Good luck.