Insecure

Hey girls, so here goes a traditional post about how insecure we are. I hate my butt. I view it as dimply and full of cellulite. I have always disliked it, but even more these days. I'm planning on exercising and fixing this problem. My boyfriend told me that my version of reality is wrong. He said that I was beautiful and he doesn't want me to change anything. (I'm 5'4, 118 lbs) He said that he can truly see how I am, but I disagree. How can anyone love something that isn't attractive? I know all this is over a butt, but we're girls. We get insecure. We have a sex life, but even then, it never goes well because I overthink it (insecurities, my past, striving to please the other person) I've had sex over 3 months and its never felt good. I'm just so embarrassed to take off my pants. What do you guys think? Is it possible that my boyfriend is right?? How can his reality be so different than mine? What am I supposed to do? We've been fighting about this all last night and this morning.