When I was in my late 20s, I hit it off with this ridiculously smart and beautiful woman likewise in her 20s. She could have been a model, she was 5'9" and gorgeous with curves that should have been illegal.
For whatever reason she liked me, we started talking, went out on a couple of dates, everything was moving right along until she confessed to me that she was a Jehovah Witness. I believe that that faith is incompatible with mine. So I immediately ended our relationship...
There is this myth perpetuated by Hollywood and all the Rom-Coms and Songs etc that love conquers all. No, no it does not.
The reality is that love does NOT conquer all and falling in love with someone you are incompatible with is not only foolish, it is dangerous.
Yes, there are matters of faith and belief that are incompatible. If you are an anti-vaxxer and refuse to have your children vaccinated then there is no way I could ever marry you. Period. That is a no go. If you are a pagan wiccan type and believe in casting spells etc then no, sorry, we can't get married. If you are Muslim and then again, we can't get married.
Now, we can be friends, sure... but never marriage.
If you are Christian and serious about your Christianity then you need to marry a Christian. Maybe, maybe you can get by with an agnostic person who doesn't mind you being Christian and has agreed to let you raise the children as Christian... but seriously... you can't be Christian and marry a Muslim or vice versa. that is just asking for drama and trouble.
Sorry, love does not conquer all. Sometimes in life, your head has to overrule your heart or even better, prevent yourself from getting into sticky situations in the first place.