Why would a non belief in god equal your girlfriend not thinking you're awesome? Why would she be your girlfriend then if she doesn't like/love you?
How is that different from taking your parent's beliefs or your pastors' beliefs? That's just as square and it's really not that radical (hello fellow kids) since ~75% have some kind of belief in god. People wanting to fit in or following an admired role model has been around a long, long time.
These are stupid reasons.