Tired

My boyfriend thinks he's always right. No matter what it is about. Even if it is about my body, his opinion will always be the right one. I can't even change my hair color. Im just tired of not being able to have an opinion... he said i can't have breast implants because they would look bad and he would stop liking my body.

Is there anything i could say to him? To make him stop thinking hes the only one that can be right?! I don't know what to do...