You guys are right.

Its just upsetting to me when she does this, an I wish I could help. When she is medicated we have a pretty good relationship. When she goes off her meds she starts acting like this. It really triggers my BPD, and I can't be around her. I am very sensitive and when things like this happen it effects me for days, sometimes weeks.

At one point it got so bad that we didn't speak for six months. It makes me really sad.