When I was a teen, the girl that I loved with all my heart told me that my behaviours were (emotionally and psychologically) hurting her. I shouldn’t have needed to be told, but I’m thankful that I was. Lots of therapy and introspection to get myself away from being that kind of person, and onto a better path. I learned to take responsibility and accountability for my actions, and to bring open and honest communication to the forefront of any relationship, romantic or otherwise.
I don’t know if I will ever be able to forgive myself for the harm I caused her, or if I should. All I can do is ensure that I am never again that version of myself.