Thanks digi, you've pretty much summed it up.
blakjedi, thanks for the support.
Chrisidelm, her & I still very good friends. As a matter of fact we were laughing about some of our great times together when we last talked. I have athiest freiends, protestant friends, gay friends, etc.
But when it comes to getting married, I want to minimize the chances of divorce (approaching the situation statistically) because of the effect divorce can have on children (children being one of the primary reasons for getting married). I don't know about elsewhere, but in the U.S. the two main reasons for divorce are 1) money and 2) religion. Money isn't a problem for me.
I did ask her if she would be willing to go to church with me, just to see how she felt about it. But she just kept pushing back. After awhile I just gave up on the issue, really.