Bf following weird instagram

is it wrong for me to feel uncomfortable if my boyfriend follows an art instagram that a girl runs, that involves her painting tits and sexual things? i told my bf it made me uncomfortable and he was like “alright i’ll unfollow!!” he’s an artist so maybe it’s just that but idk it weirds me out. i didn’t tell him he had to unfollow he did it super quickly after i was telling him that it was weird. is this normal or am i crazy? haha