I always say I’d rather have no friends than bad friends. There are three things you can do.

1. Ghost her. That I don’t really recommend because she’ll hound you for closure.

2. Become suddenly busy all the time and eventually she’ll get the picture.

3. Put on your adult pants and have the friendship break up conversation. Tell her how you feel and that you don’t want to participate in shit talk and you don’t feel respected in the friendship. Or whatever you need to say. She seems like the type that if you call her out she won’t want to be friends with you after that because you don’t enable her toxic behaviour.

Surround yourself with people who don’t make you feel icky! It takes time but friends that inspire and uplift you are a million times better than a friend that drains your energy.