Destructive sibling relationship. Please advise?

[namechange42]

I should start by saying I do not mean to offend anyone with MH issues. However, I really need some advice and support with this.

Basically, I believe my sister is using suicide threats and attempts to manipulate and control others. It is destroying my relationship with my mother. And WTF are you supposed to DO?

She allegedly took another overdose last night. I don't believe she took what she said she did, but did all the "right" (ish) things, dashed round, called ambulance (did snap at her that I was fucking sick of it, and told her I was angry with her, which was very wrong, but I AM sick of it.)

This has been going on for 12 YEARS. Cyclical. Crisis to crisis. I do not know what to do, not at all.

Have you read up on narcissistic or borderline personality disorder? Using threats of suicide to manipulate others is part of their m.o. Reading up on it may help you to realise that it's not you, it's her.

Bear in mind that you are not responsible for her (only she is), and you can't cure her (only she can decide to change, if she wants to). The only thing you can do is decide for yourself how much interaction you want to have with her, if any.

It seems from your post that your main concern is about your relationship with your mother. How is your sister's behaviour affecting this relationship?

Is this her?

By the way, I don't think it was wrong of you at all to tell her that you were angry with her. You were.

Yes, I do think that she has Borderline Personality Disorder. She fits all of the criteria.

My mother colludes with her to prevent her taking any responsibility, the rest of us get blamed for her behaviour. I am not taking that any more.

Thanks for replying