Like, seriously, I have had a few people talk about how my fiancé wasn’t conventionally attractive, but he’s attractive to me :)
Plus, he’s good to me, and I don’t date for looks. I’ve had conventionally attractive exes too who have been horrible people, so…
You don’t have to explain if you’re attracted to your partner or not. Some people are assholes who can’t be happy unless others are unhappy. Personally I would tell them to fuck off and just not talk to them anymore.