I need some advice on a few things please...?

Darrah👑
So my boyfriend is so clingy like I can't text anyone I spend everyday with him like we are married. He cry and gets upset if I do anything he hates. What should I do???
But I am 15 and we already had sex..... I feel bad Bc I always wanted to wait until marriage 
Also I have very small boobs and so self conscious about it Bc my boyfriend and mom make fun of me how do I make my boobs bigger??