So I dated/lived with my ex for 2 years and she saw every side of me, and still loved me. She was there for all my meltdowns and mood swings and understood me more than anybody I’ve ever been with. We broke up this summer bc we both weren’t feeling like ourselves and she moved on to another dude a few months later and it’s caused me so much pain and regret, I’ve realized after learning I have BPD a few weeks ago, that all our  constant stupid and petty arguments were mostly just bc of me overreacting and taking things personal due to my BPD  and I want to tell her I figured out what was going on with me, but I have her blocked on everything and am scared I’ll get hurt again if I reach out to her. I want so badly to explain my BPD to her bc she was my best friend and saw the worst of the worst. What should I do?