do guys care if a girls flat?

i’ve always been insecure about my chest. i’m 5,7 which i think is pretty tall for a girl. i’ve always thought who’s gonna want a tall girl who is flat. I’ve never been able to go out my house in a bikini as i worry about what other people are going to think.

me and my boyfriend have sex often but he’s never

seen me without a top on he’s just felt them (sorry for the tmi) he’s never mentioned anything about it however i think about it way more than i should. i really want to be a bold when we have sex but i don’t have the confidence too.