FJM:
I'm sorry that you put yourself out there, again.
She did'nt even say thanks
She read it, but isn't considering your feelings right now, as she is wrapped up in her own dialog of pain, fear, abandonment etc., and your condolences have just been ingested not completely ignored. It's all about her right now and how she feels. Bad blood, yes.
I think that we all make the mistake of thinking that the pwBPD will see our motives, and respond appropriately. If she has moved on, she may see this as a move by you to contact her, not in the sense that you are sending a sympathy message. Look at it this way, it is all okay. You did what you knew was the right thing to do.