Is there a professional you could talk to about how you're feeling? Does your company have an employee assistance program? Another thought would be to call the DV hotline and talk to a counselor there, or at your local women's shelter. You don't have to be hit to be a victim of domestic violence. Controlling behavior that makes you feel bad qualifies. They might be able to give you some support for getting through this.
I really think you could be in for a bad time if you were to stay in this relationship. If you think he will just move on then it's probably for the best. You want someone who loves you for the way you ARE, not someone who is trying to constantly mold you into someone he finds more "acceptable," right?
Hugs,