I was the same. I was picked on and made fun on constantly.
1 day in 6th grade a girl in PE grabbed my hair when I ignored her. I ended up slamming her face repeatedly into a locker. Got my first detention of my life then.
Next fight was when I was 19. Girl kept taunting me then she tried choking me. After rolling down an eclipse at a car show, I broke her eardrum, dislocated her jaw, ripped her weave out, and landed on the ground, me on top thankfully. Ended up being yanked off her while I was slamming her head onto a parking block.
Apparently if I'm attacked, I go insane.
Otherwise I don't fight, drama...nothing.