I was tired and it was late (for me). I knew what I meant, but let me clarify, because in hindsight, there's no way you could have deciphered my response.

Hate is a feeling. He has a right to his feelings. So do nothing, let him hate. Abuse is an action. He has no right to abuse you. THAT you do something about.

You're very unlikely to ever get this guy to like you. No sense worrying about what you can't have. Now, you have a right - an obligation even, to not stand by and let an innocent person suffer abuse. That would be you. So you have to stand up to the abusive behavior. How you do that is going to be up to you.

Personally, I'm not one for the revenge camp, but it is an option. Fighting fire with fire is always an option. Fighting fire with love is also an option. There's an infinite amount of ways to do both. For me, I try to imagine a loving grandparent of mine behaving that way because of Alzheimers, chronic physical pain, chronic emotional pain, etc., and decide how I would hope others would treat them in my absence. Knowing that they can be miserable people to be around and can be abusive, how would I want people to protect themselves from their abuse while being as kind to them as possible? Then I do that.

That may not work for you - and that's okay. You've got lots of options here. Decide who YOU are and respond accordingly.