Hi, just asking for some advice please or thoughts from anyone in similar situations.
I (29F) have a 22F cousin who is spiralling out of control and I'm not sure what to do. We were close as kids, but drifted apart as she became a teenager and in my opinion developed some mental health problems that were hard to deal with. I could write an essay on this behaviour but to put it briefly: she is extremely self obsessed and likes to talk very loudly about her sex life and masturbation in public venues, she started online stripping at about 16 years old, she self harms regularly and posts cuts/scars on her SM, she is out pretty much every night drinking and claims to do drugs, she posts explicit lingerie photos on her public Facebook where her entire family can see, and she has made multiple serious allegations against her fellow students. Her father was paying her way in university, which she recently got kicked out of in first year for not turning up and then made a serious allegation against a lecturer. She doesn't follow through with these allegations and seems to forget them quickly. She now refuses to get a job and as far as I can tell is now smoking weed in a random Manchester house-share that's still being paid for by her father. All she talks about is wanting to sleep with married men and how women hate her because of how hot she is. It's insane, but she's obviously hurting. I originally thought she was just being a teenager but she's 22 now.
I've tried multiple times to have in person conversations with her about her problems and starting therapy, but she'll talk over me about how perfect my life is and how she wants my life. I've worked hard to get to where I am now (happy marriage, home owner, good career etc) and I know I'm privileged but honestly we've both had pretty much exactly the same background and chance so I don't appreciate these comments. Now she's declared that she's trying to get pregnant because she wants a baby (not sure who with but I'm tearing my hair out at the thought of a child being brought into this situation). My family is quite traditional and has 0 clue about how to deal with this behaviour either - so they're ignoring it. I find it anxiety-inducing and exhausting. I desperately want to go no contact but I couldn't live with the guilt if something happened to her. She's so hard to be around though - I've never had the life drained out of me by someone like this before... Does this sound like BPD or some other personality disorder??