I was also diagnosed with Borderline Personality disorder around 10 years ago and my relationships followed a similar cycle. After a lot of therapy, mindset changes, meditation and a whole different outlook on life I wouldn’t say I’m in treatment anymore. I still have the same tendancies but I call myself out, and I have much more fulfilling relationships now. Self awareness can make a world of difference and it sounds like you are on a similar path. Wishing you the best in your future relationships! ❤