Dating a none christian

So I’ve been on again off again with a guy for a year. He’s one of the best guys I’ve been with far as manners, probably because he’s in his 30s not 20s lol. Anyhow he grew up on church even went with his ex wife but now doesn’t and doesn’t really believe the Bible of true. It kills me and frustrates me but he says he’d go to church with me sometimes. He’s really blunt, I am too, but he’s extra verbal. He isn’t rude to me but he’s so damn harsh to others sometimes and I know after time it ends up being aimed at the partner... :/

I’m so frustrated. Plus I haven’t really been attracted to him sexually not sure if it’s a birth control thing or what.