I don't consider it a big deal unless they let their religion influence their voting habits...which in turn affects my life.
You can be a christian all you want but when it comes time to vote on whether same-sex couples should have legal protections...either don't vote at all or vote yes. If you voted no, we really shouldn't be friends.
I don't seek out Christian friends and generally avoid talking to the obvious pentecostal females who attend my school. If you're wearing a long skirt and your hair is in a bun...you're more than likely a pentecostal and you hate me because I'm gay. It's just an automatic thought.
I live in the south and a lot of people say, "God bless you" or "bless you" to random strangers. I work at Wal-Mart and customers sometimes say, "Bless You" or "God bless you" after a transaction. Some ask what church I attend or if I'm saved...as if it's any of their damn business.
It generally pisses me off and I'm about to start giving them a piece of my mind.
I've had people shun me after they find out I'm a lesbian or an atheist...I don't see why I can't do the same when it comes to Christians. Until they prove they aren't a part of the Religious Right...we have very little in common.