This year I've been having more fights than ever before due to miscommunication issues with my sister with BPD, and it's really hurting me since she is the closest person I have in my family and our relationship seems to be at risk due to these fights and I don't know how to fix it. 

I really try to keep a calm, direct, kind and respectful way to address disagreements, since that's has worked wonderfully before with other friends with BPD, but no matter how I approach it, it ends up escalating to a fight with her where I get overwhelmed by the disrespect, only for her to ignore me the next day and act as if nothing happened the day after that, without even aknowledging it.

Is there a protocol or something that has worked for you for conflict resolution? I'm willing to change what's needed as to not to trigger her, but unfortunately I don't get the same in return and we are both at our limit. 

I've tried googling this issue, but I don't agree with the way that most resources demonize people with BPD.

I asked her to give me space, since the way that she exploded and talked down to me today really got to me and made me feel small, and she took it as manipulation from my end.