If you moved out like you wrote in your OP, are you choosing to continue to date this man? Have you sought therapy for yourself?

Most abusers will not agree to therapy because that means they have to be held accountable for their actions and words.

I would not count on him agreeing to attend couples counseling with you if he won't acknowledge to you already, in the 6 years that you've been together, that he emotionally abuses you.

You need to decide why you want to continue to stay in contact with someone who doesn't respect your boundaries or you as a person. Abusers don't change their ways, unfortunately. It's ingrained behavior in them.