I don't understand something, if you say you're not a victim or not being bullied by him, you just feel a sense of entitlement from your peers or else you'll feel weak? You aren't weak for doing favors nor you are being disrespected or bossed around I think.

I agree to stand your ground when someone yells or disrespects you, when someone asks you to do something, tell them to say please, if they're repetitively impolite, don't do it and say you're busy. If you don't like something, let him know so he won't do it again, maybe he doesn't know he's giving off the wrong impression.