I should mention too, she told me I needed to go to therapy and get diagnosed. So, I did. I didn't know the therapist, but I knew he specialized in PTSD so I thought him a good choice because I had a lot of trauma from being molested by a much older brother as a kid, and being very badly physically abused by both parents mostly for being gay (which resulted in about 100 different visits to court as a kid). I went to him for about 2 years and he did diagnose me with Severe PTSD (he said worse than most veterans he worked with) and we did EMDR therapy to deal with many if my issues. I did talk with him in depth about this with my sister and he said I didn't have BPS or anything like that and it was shameful my sister felt the need to project that on me. I would really like to go to a 3rd party therapist with my sister and have my personal therapist share his assesments. I think that could help her a lot.