Boyfriend is dyeing his hair 😩

My boyfriend is going to dye his hair blonde and I already know I'm not going to like it 😩 it just doesn't go with his skin complexion. I don't want to be an asshole and be like "that's going to look terrible on you" I'm going to love him no matter what but ughh 😭 Has this ever happened to anybody? What did you guys do?? I want stories lol