Itty bitty titty advice....

Im a 36A and I hate it. My boyfriend rarely sees my boobs and says they’re big but they obviously aren’t... ik he just wants to make me feel better about my body and he’s so sweet but I can’t help but feel like he can do better since his type is usually girls with bigger chests. I feel like he isn’t as attracted to me as he would be if I had bigger boobs and tbh I’m kinda scared he thinks I’m not sexy or desirable so I try to keep a shirt on when we have sex or get intimate and so far he hasn’t noticed and we’ve been together for 2 yrs.... idk what to do ik I need to be more confident but idk how. I just feel like small boobs are such a curse esp when I see other girls look so good w/big chests 😣😣😣