I apologize in advance for the lengthiness of this post. If I could get advice from everyone on how to handle the situation, I'd be most appreciative.

A bit of backstory first. 26 year old male with Bipolar II, anxiety, and PTSD. My ex is 23, and we were together for almost 3 years, friends for another 2 before that, and living together for 2 years.

She had said she was crazy and always made it seem like a joke, but as time went on and her more self-destructive and explosive tendencies appeared, I realized it wasn't the case. I should follow up that I do not think she is crazy, but definitely needs professional help because where she is and where she is going- she needs someone to help her find healthy coping mechanisms. After the break up almost 6 months ago, I have had no contact for 178 days.

She has thankfully not taken up to finding a new "favorite person" and just diving straight into a relationship again. She is bettering herself, albeit slowly

See, the months leading up to the break up, her behavior of pushing and pulling me back confused me and made me put my guard up. When she flipped out on me, I would think it was over the stupidest things and not take her seriously. Which only ended up fueling her anger even more. She would scream and throw things eventually, and when I finally made the decision to leave( that was the hardest decision I've ever had to make), she smashed my TV in with my guitar and proceeded to attack me. Scratching my face and giving me a black eye. Screaming she hated me and never wanted to see me again.

I wanted to hate her. I wanted to move on. I wanted to just let it be... but after realizing my own mistakes and finding out about BPD, her behavior fits so well... her parents are taking her to be evaluated and she will be starting psychotherapy soon as well. Something I advocated for her to do for the longest time but she didn't "want someone poking around in [her] head"

I am getting my own life on track, and preparing to go to college and eventually leave the state. My timeline gives me 2-3 years here before I move on to better things in my life. I feel equipped to deal with her issues a little better now that I have an understanding of things that trigger her and knowing she is getting the support she needs.

I wish it had happened while I was still there, but in those few years I'll still be around I want to try and repair the damage done. Does anyone have success stories of rekindling things? How patient should I be? How persistent? 

I know that she does miss me sometimes, but she doesn't cry all the time anymore. Ive kept in touch with her family because they view me as part of the family anyway.

I'm sure there is tons of stuff I've forgotten to go over, but my lunch break is ending in a minute and I have yet to eat.