Here is what worked for me.
I blocked her on social media.
I blocked her number so no calls or texts.
I deleted her texts.
I forward any email from her to a good friend so he can decide if I should see it or not.
I asked mutual friends to not inform me of anything new that they hear or know of about her.
Only after quitting adding fuel to my mental fire did it start to die down. It didn't go away, but the raging, uncontrollable chaos of it is gone.
Without going NC my pain was like a fist I had tightly held in my chest. After about a month the fist started to open up again. The soreness and pain is still there, but the clouds are starting to clear.
I loved her intensely, but that love prevented me from seeing what was happening and kept me from being able to deal with it on any level other than suffering her whims.
Distance has given me clarity to see that she was using me. That her needs and unstable emotions kept her from ever being able to get past that to truly appreciate who I was to her other than a source of affirmation and ego boosting. It's sad as hell, but at least I see it now, and I can start to deal with it.
She is broken, and I can't fix her. Nothing I did would have changed my fate with her had I stayed. It just would have gotten more painful and more protracted, and I would have been throwing my time away on someone who is incapable of the love I want and deserve.
After making the very painful steps of NC, it all started to get better. There are literally millions of women out there. Someone better is waiting for us.
Take the time. Heal. Focus on fixing what you can of your own issue, then walk down the road to a better life.
Thanks for this post - this is EXACTLY how I felt about my exBPD and what I've realized since the breakup. I've done the same things with regard to no contact. If I see anything about her, it takes me right back to day 1 again almost, so right now I'm basically hiding from the world a little bit, like a wounded animal, but I can feel that I'm healing slowly because I have ZERO contact and not exposing myself to more hurt. Licking my wounds in my cave.