Yes, narcissists are often bullies. JWs are often narcissistic if not full blown narcissists. They can be aggressive, but often very passive aggressive. They can't see you or your feelings and the second they are brought up often the JW shuts down. These are typically one way relationships. My guess is that with an open mind you may see other ways that your relationship with this person is very one sided.
Boundaries are the key. We teach people how to treat us. Give a line not to cross and consequences for doing so and you'll see how much respect a person has for you.