Against my better judgment, I'll jump in - even though I usually avoid discussions about religion like the plague - only because you sound so sincere in wanting input from others.
I might offend but here goes. In my opinion, your GF is a fundamentalist and that is NOT a good thing.
In my family alone, we have 3 religions, well, 4 if you include the fact that I don't belong to any particular organized religion. I have a big problem with organized religions myself. It would take too long to explain and I don't want to bore everybody. Let's just say I'm not very religious, but I still try to live by certain Christian principles, if that makes sense.
Still, I cannot even begin to count how many times people approach me to try to cram their own religious beliefs down my throat and tell me how to live my life.
My religion is pretty simple:
I practice charity towards others whenever possible and generally try to be a good person, you know, and abide by the main principles "thou shall not steal, etc." all that good stuff. I DON'T turn the other cheek, though
But to get back to your initial post. I believe that it is easier to tolerate differences of opinion in politics but when it comes to religion, it is far more difficult because people are dead set on their beliefs in an almost visceral manner and they have zero tolerance for others people's view point.
So much so, that in some cases, religion drives people to do crazy things. People have been killing each others for years, since the very beginning, over differences of opinion on religion. More recently, we have lost 2 buildings in NY, due to some religious extremism turned violent as well.
So I worry for you and your relationship with your GF, long term, when you say that she is trying to get you to follow her beliefs. I don't know the situation, of course, but if I were you, I would rethink having a serious relationship with someone who is so different at the core. Hopefully I'm wrong, but I think eventually, that will create a wall between you if it isn't already there.
My 2 c, though, nothing more.
Peace
