hi Lost-love-mind, and

im sorry for the circumstances that have brought you here, but i am glad you found us. i think you will find many of us have been there, or in similar circumstances, and we can help.
i know how difficult it is to process a sudden and unexplained breakup. your mind and your heart want answers. not everything about BPD is intuitive, and in a state of crisis, we can sometimes work against ourselves.
generally, the first step to reviving a relationship is to stop the bleeding - not do anything that works against us.
it sounds like your reaching out is pushing her away, as her response has been mostly to lash out and/or further block. giving her space is your friend here - reaching out is only reinforcing her position and making a reunion less likely.
i think if you give her that space, after a little while, she will wonder whats up, and be more inclined to reach out. when and if that moment comes, you want to be ready - you want to be in a clearer state of mind, you want some more knowledge of what youre working with, and some new tools in your tool belt in the event you reunite. i strongly encourage you to absorb the material in the lessons and tools directly to the right of the board.
are you seeing a therapist? if youre experiencing obsession, as many of us tend to do in the aftermath of our relationships, it would be a good idea, and can really help.