I'm not entirely sure what I'm looking for here, but I really need to get this off my chest.
I have a twin sister who I believe has a type B personality disorder (a couple of them in fact). I haven't said anything to her about it because she gets very very angry and defensive if she feels like she's being attacked. She's currently seeing a therapist because her gp believes she may have bipolar, but in my experience she doesn't have extreme highs or lows. She's running with the bipolar diagnosis (although it's not formal yet as the therapist needs to see her experiencing the high and low before official diagnosis).
I found out today that her therapist 'apparently' said to her that I'm obviously someone that believes that girls who wear short skirts and tight tops deserve to get raped. God knows what she said to her to get that response. I absolutely, 100% do not believe that at all. I'm quite horrified that anyone would even think that I thought that actually. I'm a proud feminist and truly believe that rape is always the rapists fault, no matter what the victim wore or how much they'd been drinking etc.
This is just the tip of the iceberg with my sister. She regularly bad mouths me to people in our home town (I moved away 7 years ago, but go and visit frequently) and several people that I used to consider friends quite obviously don't like me anymore. She's been like this our whole lives. She would frequently become friends with my friends and then turn them against me. She dated all of my ex boyfriends when we were teenagers (I say all; there were only 3!). She used to steal from me, our mum, even her friends, and she still steals from me and my sister. She tells me negative things that other people have said about me (e.g. her boyfriend thinks I'm a snob, her best friend said that I'm really judgemental and unsupportive, one of our mums friends thought I was too stuck up because of the way I walked etc). I've had real issues with my self esteem pretty much my whole life because my sister doesn't seem to like me very much (and according to her neither does anyone else).
The thing that irritates me the most is that I do think that I'm actually quite a nice person. However, none of my old friends like me anymore, and they don't have any time for me or my kids. Ironically, my sister is so nasty about these people and their children to me. I asked her to stop insulting these children to me (she hates all of her friends kids and regularly calls them really awful names to me, but then obviously gushes all over social media about them) and she absolutely flipped at me. I got told that I'm taking advantage of her poor mental health, that I'm unsupportive and judgemental and that I'm an awful person for speaking to her in such a way. To clarify, all I said was that it made me uncomfortable when she spoke of 2 and 3 year olds like that, please could she stop. She ended up disowning me and telling me that I couldn't be a part of my nephews life anymore. She re-owned me the next day, and the only reason I didn't tell her to eff off is because of my nephew.
I just don't know what to do. How am I supposed to act around her? Or react to the awful things she says to me? Anything I do say seems to set off massive arguments and then I get bad mouthed to all and sundry. I worry about my nephew too, and the affect she'll have on him as he gets older. I guess a part of me is jealous that someone like her can be so popular and loved even though she's so horrible, and I don't really have anyone apart from our family (who all know what she's like). Any advice on how to deal with someone like this would be appreciated.
Mumsnet has not checked the qualifications of anyone posting here. If you need help urgently or expert advice, please see our domestic violence webguide and/or relationships webguide. Many Mumsnetters experiencing domestic abuse have found this thread helpful: Listen up, everybody
Relationships
Narcissistic sister
Somevampsarehot · 06/02/2017 01:59
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