Psychopath and Narcissist Survivors Support Group

she thinks this guy from my school is totally in love with her and that he is her one soul mate. basically she is nuts. she has never spoken to the guy, and they guy just took a glance at her. i seriously would not give a damn if she wasnt also stalking me now!
she has this delusion that i like this guy too and i am trying to break them apart. you see her favourite movie is cinderella, and i am supposed to be playing the evil sibling role. basically she always hangs around at places that the guy hangs around, and she stalks me around the house and listens to my conversations.
she also likes to hang around the places i go to.
it comes to a point where i am afraid to use any word that rhymes with "sister" when she is hovering outside my room, because she might think i am talking about her.
she also has this crazy delusion that all my friends are my friends because she is my sister, which is just ridiculous, because noone even knows she exists. she is just narcissistic to the extreme and she always acts like she is better than me.
i cant even be angry at her for stalking me because that will just make her think that i am jealous of her and her "soul mate" and thus it will encourage her stalking.
whenever i tell her to stop stalking me and that it is creeping me out , she will start crying and act like i am making it up and that i am trying stop her and her "soul mate" from having a "chance" encounter. the funny thing is that i dont even know that guy. but she always twists everything i say with her mind to match her fantasy. so to her i am just this lying evil sibling.
i am seriously at wit's end. it has come to a point where i stay in my room most of the time i am in my house. i cannot look sad or show any negative emotion because she will think it has something to do with being jealous of her. i am afraid of her. she will not believe anything i say. i cant even treat her nice because she will think her "soul mate" forces me to do that. i really dont know what to do.

i think she also has psychopathic tendencies. she is manipulative as hell and a pathological liar. it is hard to pin anything down on her because she is so sneaky.
'she likes to put me down, and spread nasty things about me, but she showed zero guilt when i confront her with it. she just smiled and just ignored me, which is what she usually does to belittle me. she acts like an angel around friends and family, and she puts on this facade that is so fake . she has different facades in front of friends and family, which she show no qualms at alternating between shamelessly.
she also reads waaaaaay too much into stuff. she thinks everything i say or do has some ulterior motive, or that it has something to do with her.

NG,

Welcome to the forums.

May I ask how old you and your sister are??

You mention she is stalking you, then also that you have to watch what you say b/c she may be hovering around just outside your room.

I take it you two live together?

loux

im 18 and she is 17. she always hovers around me when i am at home.
we live on different floors because our house is kinda big, and she likes hanging outside my room for some reason. she is delusional. she thinks everything i say and do has something to do with her. when i am in a bad mood she thinks i am jealous of her. when i say i dont give a damn about her and her life, she think i am jealous of her! when i ask her to leave me alone, she thinks i am jealous of her. she just has this crazy delusion that i know this guy she has never even spoken to, and that i like him too, which is just ridiculous. basically everytime i try to get her to f**k off, she thinks i am scheming to prevent her and the guy she likes from meeting.
like i have the energy to be jealous of her, or meddle with her delusional fantasies, or that i even care.
she just watches these stupid teen dramas like a crack addict, and she thinks she is living in one.
she is crazy! she is such a freakin narcissist.
she actually thinks i give a damn.
it comes to a point where i am avoiding her, which is a bad idea, because that encourages her, but i seriously just want to be left alone!
i cant wait to move out. i cant deal with her crazy immature shit that belongs to an 8 year old

I hear ya.

My brother and I were always at each other's throats back in the day. We pushed each other's buttons alot (although back then, I would have never admitted it...In retrospect, I didn't even see that I was doing that then - I thought of it more as a defensive strategy or 'getting even'. But now that I am older and look back, I did try to get him in trouble every so often; and he me as well).

Hard to say someone is stalking you when they live in the same house. Do you feel fearful of her? Is the guy she likes one of your close friends???

You also mentioned 'erotomania'. What exactly do you mean? Has she tried to seduce you? (not being to be sick here, just clarifying what you mean by labeling her an 'erotomaniac')

Do you have plans to move out soon?? because honestly, I don't think the type of stuff you are describing will stop until you do move out. Not too much you can do when you share living space.

loux

Your story has a ring of familiarity.
My sister always seemed to be jealous of me for no reason. Like she would make things up in her head and come out and punish me for whatever my role was in her scenario. When I began to research this disorder, I learned that P's take sibling rivalry to the extreme. I am the older sister and for that I have been punished all the time we were growing up together and beyond. It never made sense but it does now.
I've also learned that in her little P head, my destruction is the goal of our relationship. And so we have no relationship. We live far away from each other and I currently can't stand the thought of speaking to her so I don't.
Eventually she will be "forced" to come at me by proxy through our N mother. The relationship between her and my mother is getting sicker by the minute so it won't be long before she finds a way in and thats OK. I understand whats going on now. I don't have to be confused and hurt about her behavior anymore.
I'd rather sleep under a bridge than be around my sister right now.