My girlfriend who has BPD has left me last week, we've been together for 4 years and I love her completely.
It's been a rocky road and we've split up a number of times, it's gut wrenching every time of course. We've both been quite shit to each other but it has been for the most part a very loving, fun relationship. I can't imagine life with anyone else.
So she's left me and says the things that happened in our past are too much to just ignore and we both should move on as we drag each other down.
I desperately want to try and make this work, how can we move forward as a couple and not fall in to the same traps again? What is required or what do you do in your relationship to manage the devaluation cycle? Is she even going to want me back? The love is intense and it was a bit out of the blue when she left. 
Some advice would be great