I had a job on a construction site and the owner/manager was an abusive bully. Lucky for me I was old enough to know who I was and knew I didn't have to stand for it. So I quit and I explained why. The guy wanted to keep me on and said he would change. I knew better than that - if he reached middle age and hadn't learned how to conduct himself in a rational mannere, he wasn't going to change just for me.
I felt so relieved and good about myself for leaving that situation.
The other thing that I felt good about was that after I left everyone else quit, too!
Good for you, and IMO bullies are cowards who think they have the right to push people around. Usually when someone stands up to them they back off. Bullies suck.