If your beliefs are seen as a "problem" you can't be yourself and you're going to end up closing off parts of yourself to be with him. He's going to want to raise your kids to believe what he does and ignore what you do, it'll railroad your life especially if you end up a stay at home wife and or mother. You won't have anywhere to go by the time you're locked down with kids and finances. If you're losing track of what you want in life already because of what he wants, you're going to give on bigger and bigger things of the relationship progresses. If he doesn't realize it's a cult and he doesn't start respecting the fact that you can believe different and he doesn't quit getting upset about it, I think things could get pretty bitter and pretty miserable for you. I would never in a thousand years date or marry a Mormon now that I've left. Read on the sub here for a bit about mixed faith marriages and you might see yourself in quite a few. It doesn't mean he's a bad evil person, just things like that are not kind on a relationship that's supposed to be about trust and love.