It is strange that he tells you that he doesn't want you just like that. It would hurt anyone.
I know it can be hard to admire yourself and your body, I know because I am not tall either and my bra is far from cup C, but you have got to start loving yourself. If you dont, why the others should? Maybe start with small things, like take long baths with some aroma oils, use body lotions that smells amazing! It will make you feel better, use your favorite perfume before you go to bed, take care of your hair even if your are off work tomorrow! Maybe go to spa salon every week, sometimes we need to fix something inside us in order to feel better outside.
About sex.. your bf gotta stop talking to you like you are a robot. You have feelings. Maybe you should go away, sleep in a different room/bed. Maybe you need to have a lil fight, make up sex is always the best make a rule for yourself and always wear nice underwear when you go to bed, something different. Play with each other, take your time when you are having sex, show him you love his body.

Sent from my SM-N9005 using Tapatalk