Coming from a person who tolerated similar things like you suggested, you best tell him to stop with the jokes even if he thinks it’s harmless giggles for him cuz apparently he’s the only one that thinks it’s humourous. If he really cares about you like he says he does, he’d stop. And if he doesn’t, gurl, just RUNNN cuz he ain’t a man and you’re just dating a boy right there. And a boy who refuses to grow the fluff up too 🫶🏻🫶🏻🫶🏻 all the best