WTF.! I'm sorry, but who the hell are these people to be commenting on YOUR body like that?!?! They're not perfect either, nobody is. Totally Not their place to be saying anything about your breasts.
I can relate to feeling dejected when your bf says another girl's breasts (significantly larger than mine) look good. But mine are still fun to play with, and if my bf isn't going to tease and pinch my nipples how I like, then I'll just do it myself! Gotta show him how
Anyways, good luck on your journey. Hope you find success and love for your boobies!