A few years ago, my family adopted the older of my 2 younger sisters from Ukraine. She had suffered abuse from her mother until she was about 10 or so. Her father was not around. I also have another younger sister and another younger brother who are also adopted and have their own special needs (and before you ask, I am the only biological son of my mother).
My sister had recently said to one of her friends that she would attack my mother with a kitchen knife, probably due to frustration of school and having to share stuff with my other sister, and generally not having things go her way. My mom figured out about this from that friend's mom. Basic psychological history would show that she (psycho sister) has a predestined hostility towards maternal figures due to the fact that her first maternal figure was abusive, and she would still dislike my mom even though she is not abusive at all.
Anyways, she was sent to a Psych ward for a week where they found that she most likely has borderline personality disorder (google it), which basically says that she has very fragile relations and also has very limited control over her emotions. The ward also found out that she has hostility towards my 2 other younger siblings. However, it's apparent that she is okay with me, probably due to the fact that I do not interact with her as much as my other siblings, and also that I represent some older brothers that she said were good to her when she was younger. She has also stated that she wants to get rid of my mom. She has special education needs obviously since she was adopted at a pre teen age from a poor foreign country, which probably adds to her frustration.
Other info:
She is 10 months younger than me
She has had multiple fits with my mom when my dad was not around, throwing stuff at walls, yelling, calling her a bitch behind her back
I'm worried she might attack my mom or my other siblings when she gets back from the Psych hospital guys. I just had to vent this out somewhere.
