Oh, thank you for saying that about the Bible verses, JP :'). It's really good to know that they helped.
I used to think/say things similar to that, JP (about it not mattering if I do something that isn't as bad as things others do). It was only on "really small" things, but sin is sin, and it keeps us away from God, for sure. Even "little things" ...
Also, I know this isn't something that you probably want to think about right now, but please pray about whether or not to continue this relationship, JP. God doesn't want us to marry unbelievers, and it will most likely get harder and harder to break up as time goes on. I'm not trying to tell you what to do, but PLEASE pray about it. And how about this; here's a special prayer for her; hopefully she'll come to grace and love

. "Lord Jesus, only You know what pain JP's girlfriend has gone through. Sir, I assume that she actually does believe in You, but she's angry about things, and that's why she's denying You. Either way, You know, of course. Please do a number on her heart so she can see You for Who You are: The One Who loves her more than anyone else does or even can. In Your Name, amen."