Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: This happened about 5 years ago, but sometimes I think about this ex-friend (T). We first met at a school club where we bonded over similar interests and read the same books. Basically, it was great. Then came high school and the pressure level is over 9000! High school was when she really became toxic. I’ll list some. Firstly, she started mocking her friends, which left me uncomfortable because they treat her sincerely. Secondly, I was failing tests, but I studied my ass off and improved my grades. Her response? "Oh no, all of you are catching up to me." Secondly, I did a lot of volunteer work then. T did not join me, which is totally fine. But then a mutual friend (M) would sometimes ask me "why exactly" am I doing volunteer work. I began to suspect if T was behind M's weird questions, because T often showed disdain for volunteer work and humans in general.

T, M and I called ourselves the three musketeers. Over time, they grew closer and hung out together without me. Once I had a bad day and called M to vent, only to find out T and M were going for a movie date together without me. M told me they didn’t ask me out because they "didn't think" I would be free. I was TA and flipped. We resolved that issue, but I overreacted big time. From there on, this trio dynamic was on the rocks. 

I gradually realized T was never happy for my successes. When I got into my dream college, she didn't congratulate me; she made it about how people were achieving their dreams but she wasn't. T applied for a medical degree but when I asked if she wanted to volunteer at a hospital, she told me she wasn't interested in helping others. Eventually, she didn't get into the course but a mutual acquaintance did. T didn't think that person deserved it and dissed her. T also cut connections with her long-time bestie ("B") when B became a Christian. T was nihilistic and saw it as a betrayal, calling her B things like a "hoe". 

Fast forward to college, and I'm working on a project with... B! B asked me why T cut her off and I was honest with her about T’s opinions on B. When I finished, B then went on a LONG exposé about how T mocked me behind my back for 6 years. T gave me a nickname: "fallacy in motion". If I was too stupid to be her friend, then why did T keep me around? To make herself feel good? I also used to write fiction and we both wrote similar stuff. I was worried about seemingly plagiarising T but she told me I wasn't doing it. Turns out T accused me of plagiarism to B... among other things. That was the last straw. I went no contact on T afterwards.

2 years ago, M asked if I could help her with T’s depression. M said that T's insults and bitterness was to cover her deep sense of inferiority to others. I declined on the spot. One question M asked me stuck with me: "Don't you know she would also feel hurt that you stopped talking to her?" 

AITA for not supporting a toxic ex-friend through depression?

not supporting a toxic ex-friend through mental health issues