Emily, the emotional you is being a real idiot. Start using some commonsense. You are involved with an abuser. AN ABUSER! YOUR BOYFRIEND IS AN ABUSER. Say to yourself: I AM DATING AN ABUSER. I AM GIVING ANOTHER PERSON PERMISSION TO ABUSE ME.
Does that seem reasonable? So now what do you need to do about it? If you had a girlfriend who was dating a guy like your guy, what would you tell her?
This has absolutely nothing to do with the Jehovah's Witnesses. It wouldn't matter what religion (or no religion) this guy is, HE IS AN ABUSER. He will be an abuser with the JWs, he will be an abuser without the JWs. YOU CANNOT CHANGE HIM.
Now tell yourself: I AM NOT GOING TO ALLOW ANOTHER PERSON TO ABUSE ME.
Good. Now what else are you going to do about this to take care of yourself?