Cleavage and big boobs "trashy"?

Alright so I'm a 34DD in bra size. Anyway, my roommate comments everyday about how my boobs look trashy especially when I have cleavage. I don't like too high of tops because they make me feel like they're choking me, and I also like a bit of cleavage. I can't help my boob size and I like how they are. But now I'm getting insecure about them since they aren't "classy" and too big for my body... What do you guys think? Are big boobs and cleavage trashy?

(Pics are how much cleavage I normally have or less. I also rarely wear red lipstick, but came back from a party and thought it was cute)