Walking away, with your head held high is dignity. Walking away with head held high and a gleam in your eye is called self-esteem. Walking away with your head held high and a gleam in your eye and pride in your stride is called cockiness. Walking away .
"The less you respond to negative people the more peaceful your life will become." There is a tempation to fight back, isn't there. To respond like for like. But this only leads to more negativity coming back at you.
Never go back! And if what broke you tries reaching out to you again, ignore them. A valuable lesson for everyone to know. If they broke you to begin with then he didn't love to fight and be better for both of you.