Why me?

Nikki
My boyfriend has sex dreams LITERALLY every night and practically all night. He actually masturbates in his sleep. And it's always about other girls... It makes me feel like I'm not good enough.. and unwanted. It doesn't help that I'm a thick/curvy/chubby girl and he's a self obsessed gym rat.. So I'm already extremely insecure, especially when it comes to him... I feel like I'm stuck in this viscous circle. Any advice? :(