She is manipulative. To sum her up, she has all the Dark Triad traits.

Anyways, a couple days ago, I caught her talking shit about me and confronted her about it. We had a big argument. I told her she was a two-face, snake, etc since one day she is laughing with him and then next day she is saying some underhand shit to me to my mother while I am standing there. She now texts me “ Are you still mad at me?”

I am no pushover, have respect for myself nor will I ever be okay with anyone especially my own family talking shit about be. I plan to give her the cold shoulder for some time: like I’ve done in the past, but I how would I deal with this in the long run?

To be honest, I am fed up with her shit. With her attitude and her snake, two-face behavior. But she is my sister too and don’t want to just cut all ties.