big boobs not looking "classy"

N🌻
Okay so I was talking to boyfriend about the kind of formal dress I'd like to buy for my year 12 formal next year (I like to plan early ahah). Anyway, I was saying how I'd love a dress that has a nice big v neck kind of thing if that makes sense. But he said that wouldn't look very nice because I'd just be all boobs, not that my boobs are horrible but that it would take the attention away from the dress. He said if my boobs were smaller it would look more classy. It kind of upset me, I really really love the idea of that dress but I didn't like th comment about it looking not classy. 
So do you guys feel that girls with larger breasts can't pull of certain clothes that smaller breasted people could? That somehow having larger boobs makes it look less classy?