Did you know I verbally abused my ex girlfriend in a fight when I was 18?
That's awful. Why did you do that to your girlfriend?
That bitch meant everything to me, and she ruined my life
You shouldn't verbally abuse people, even if they have mistreated you.  If you get the chance, I would try to apologize for the things that you said.  It is never too late to do so.
She deserved to be verbally abused, it's only fair.
She did not deserve nor does anybody else. You should apologize for hurting someone that you once cared about.