When I was 18 I was deeply insecure and had undiagnosed depression.
I had a boyfriend who I broke up with and he got a new girlfriend.
I was horrible to her. Granted she gave as good as she got, but I started it and I was truly psycho.
As an adult (15 years later) I still feel ashamed and bad about it, as i would never treat anybody that way now. It crops up in my mind a couple of times a year.
Would it be totally unreasonable for me to reach out and apologise via social media, and admit to her i know I was being a psycho and Was unfairly awful to her. Or should I just leave it?