he started to lock me out of the house, grab me, choke me, bite or push me. He would never actually hit me though. So i wasnt sure if it was actually abuse.
Yes, you can be sure its abuse. As with the others, tell him in a public place.
Some people are probably going to disagree with me, but I don't think you need to break up with him in person. He doesn't deserve the courtesy. You shouldn't put yourself in the position to be yelled at, made to feel like shit, grabbed, bitten, choked, or pushed. I know you think he won't freak out, but why even chance it? Email is fine. Short and to the point. "I don't want to be with you anymore. Do not contact me ever again, or I will get the police involved. Goodbye." And stick to it. Block his phone number, email, etc. Don't even give yourself the chance to cave and respond to him. Just get him out of your life.
I agree with this in principle, but in practice it might just make him freak out more. I think you should tell him in a public place (coffee shop) and be as kind as you can without letting him dump on you. Wish him well, say its just not going to work out, blah blah. Make sure he understand this is absolutely the end. And that he has no idea where your new place is.
Good luck.
Second thoughts can generally be amended with judicious action; injudicious actions can seldom be recovered with second thoughts.
--Cyteen by C.J.Cherryh