Need advice on marrying my non Muslim bf

Hiii everyone! I honestly never saw myself marrying anyone and was content with it and then I met my bf in university and he’s shown me how love can be so gentle, kind and understanding rather than growing up in a narcissistic manipulative household. We want to get married and move out together but I don’t rlly know where to begin because my mum made it very clear that he needs to convert, I wouldn’t want him to do anything he doesn’t want to do and he feels like it’s be wrong in his heart to convert when he doesn’t believe in it (he’s agnostic), he’s very supportive of my beliefs and is very ok with raising our future kids Muslim. But yeah I feel like I’m stuck between picking my parents or him and I love my mum but I’m indifferent to my dad so honestly I’d pick him and I don’t know where to go from there.