Hello!
Im new in here,

!
Well, first of all thanks for allowing me in to your community.
My post is regarding my partner, we have been together for over 2 years, I believe my partner has all the signs to has BPD, but has not been diagnosed yet.
She was raised in a truly abusing family, father was a cheater and a passive aggressive guy, mother was a

narcissistic

that was physically, mentally and emotionally abusing with all children ( 3), when my partner has 16 she started a relationship with a girl, so their family find out and the father and mother throw her out of home, because she was "

disgusting" and I don't know what else, they have never been there for her, when she was a child ( before she went away), her mother continuously told her she was stupid, she was a failure, that she was to fat, that she wasn't cute enough, that she shouldn't have been born, that she ( the mother) should have go on with the abortion, that she ruin her life etc etc.
When my partner was force to go away, she finished her career, and start with a nice job and has a pretty independent life, even tho if they call with a big "drama" she would be running to their side. Siblings are not reliable either, she went to visit with her sister and family for few months and the sister behaved with her daughter ( my partner niece) like her mother used to behave with them, so my partner became the " rescuer" of the niece, but she was bombarded with abusing behavior ( treating her like a cleaning worker for the house), telling her she would go to hell and she need to stop being gay, that she needs to stop being herself and find herself a nice man and have children as god intended for women, her sister became a clone of my partners mother.
Even after all done, even when they are still mistreating her ( the sister stuff was just 9 months ago), she still in contact with them, still writing in their social media as nothing happened, still try to please them, and I get really really mad about it, we have fight about it, and im tired of telling her she needs to cut that relationship, even if we are together, talking or having a relaxing time and the family calls, she would take the call, she would be there for them even though she knows and has being crying several times in my arms about the abuse, about how she doesnt want to have a relationship with them anymore, how much she hate them, etc, but she still cant cut them out...
I really dont know what else to do... can you help me?