Apologies if this isn't the right place, but I'm seeking advice. 

I recently met a girl. We talked a bit, finding we had similar interests, and stayed in touch afterwards, chatting some in the days that followed. Quickly found that we had some similar experiences in life and both dealt with serious depression and anxiety. She revealed to me as well that she suffered from BPD, my only experience with was an old online friend that had BPD and was really self destructive, ghosted everyone, and disappeared one day. 

Anyways, I felt like a connection was made. We both made it pretty clear we were interested in seeing where things went romantically and she even last week half jokingly asked me to be her boyfriend and asked me to come over that weekend. I wasn't able to make it on such short notice, so I planned for this weekend. However, since then, it's like a switch was flipped and she seems to have very little interest if any at all in me. Rarely starts conversations and is quick to end them by some means, leaves me on read for hours sometimes, etc. I'm not sure what's going on, tried asking her about it and she just said it was her bpd. Attempted to be there for her and listen to whatever she wanted to say but she told me sometimes she just wants to be alone. So I just left things at that. 

Our conversations haven't returned to what they were since, and I'm not making a lot of progress on understanding what she's going through. I was hoping I could get some advice, I know I can't heal her, but I'd like to keep getting to know her, try and be someone to listen/comfort her/whatever she needs within my power, and see where things go and not get shut out suddenly.