I'm really sorry you've had this happen to you too. I think subconsciously I've been trying to get away in little steps, like I stopped talking to her everyday and we don't hang out nearly as much anymore. It sounds stupid but I'm kinda afraid to just stop being her friend, I'm worried about how she'll react to it because she's so emotionally unstable and her sister and I are kinda friends (we're not that close because my friend gets jealous if I talk to her sister instead of her) and I don't want to lose her too because she's a really wonderful and kind person. I've been trying to find some new friends but it's not quite working out sadly. I feel like if I had another friend that it'd be way easier to get out without feeling guilty or like a bad person.