controlling

My bf is too controlling and always accuses me of things that I don't do. & I feel like I can't always go out and have fun with my friends because he thinks I'm up to no good. Long story short, I don't like to have sex with him & im not as affectionate With him, is it possible that I can not be attracted to him anymore because of this? ( no there isn't anyone else in the picture & I don't have a eye on anyone else ) is there anything to do to change this feeling. I wasn't like this before.