Girl's Behavior

Should I feel guilty about this?

There are so many beliefs and so many ways of thinking in this world. People who are fanatic, people who can find a common ground, etc. For example, a Christian can watch the Vampire Diaries or any other gruesome fictional show and enjoy it. Or perhaps Tom Ellis's Lucifer where they portray lucifer/or the devil himself, to be a kind individual who is simply misunderstood for doing his job which is punishing the guilty or whatever. I was raised religious but over the years my family strayed away from the church and I strayed away from faith as a whole. I leaned towards logic, and science, and love things such as dinosaurs and evolution. My parents became more spiritual than religious but still believe in god and in the universe. This is about to take a completely and unexpected sharp turn rn. But I am a (F) gamer, and I am dating a (M) gamer and we are both adults. We participate in roleplay servers with friends where people get to choose their own original characters and play them and have powers, form their own backstory, lore, whatever. I chose my character to be an angel and my SO's character is a demon lord. When I first started rping with him almost a year ago, I didn't even give it thought. It was cool. His portrayal of the character, his look, even the fact that he was a demon king or whatever. We had that cliche odd couples story of the demon that fell for the angel and stuff. We even have some religious friends in the rp group who actively go to church and see nothing wrong with him playing this character. I have OCD and tend to overthink like, A LOT. Recently I've been questioning whether or not it makes him a bad person for him to be playing this character. Irl he is sweet, amazing, and very supportive. Amazing guy. His character came from anime demons, since he used to watch a lot of anime, which some religious people might already consider a sin. He's explained that he wants nothing to do with the biblical aspect of demons and such. (See update below)

Updates
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He says he doesn't play with that. I don't know why my ocd has latched on to thinking that he's specifically in the wrong for having chosen a demon character when I myself love watching tv shows of zombies, vampires, horror movies, celebrate Halloween, and am not religious. I'm not really questioning my beliefs, I'm just kinda questioning if i should feel guilty for liking to rp with him even if he chose his character to be an anime based demon? Maybe its what I was taught growing up?
Should I feel guilty about this?
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