Hey! So this happened a while ago and I need some opinions because I'm not sure if what I did was right. My friend and I, let's call her "C", had a pretty big falling out. It started with an arguement she had with another friend of mine. Basically, during class, my other friend, "B", was talking with some of her friends when she mentioned a guy she liked. C immediately blurted the guys name out, which pissed B off because she knew people in that class were friends with him and she didn't want anyone to tell him. C got really upset with B because she was acting cold with her afterwards. C gave half-assed apologies to her and eventually ended up leaving class early. She then stormed into the next period class and yelled at B saying "Youre lucky I don't go off on you" and "it's not my fault I have ADHD and Autism!" (Which she does not. She is not diagnosed with either) She then went to cry in her boyfriends arms and left class early. She then came back in at the end of class to "apologize". She ended up saying something like "i was bullied when I was little and when you got mad at me I kept blaming myself" and "im not a bad person, I have a lot going on and I don't like it when people are mad at me." Another half passed apology. Not a single "im sorry" or an ounce of accountability. Here's where I may be the asshole, later that night I messaged her on Snapchat about what happened. I brought up how her apology wasn't an actual apology, how she was using her trauma as an excuse for her actions and that it wasn't ok. She got mad at me and blamed it on her having "Borderline Personality Disorder". Which she does not have nor is she diagnosed with. After a lot of back and forth, I ended up apologizing because I felt bad and didn't want to lose the friendship. She demanded I apologize to her in person during first hour, which I did not do. Since then, our relationship had been really strained. Eventually she messaged me saying she didn't want to be friends anymore and blamed me completely saying "I made her feel like shit" and "I'm not the right person for her to be around right now" I completely accepted it, told her i was sorry and moved on Now, again, here's where I may be an asshole. I said something about how "you never know a relationship is toxic until it's gone" on my social media. She responded with "im not the one who made it toxic 😘". I pointed out how, throughout our friendship, she would compare our bodies. I was underweight back then and she would say things like "you have no ass!" Or "I have more ass than you!" She did the same thing at homecoming in front of my now boyfriend. She also attempted to get with another person's boyfriend RIGHT IN FRONT OF ME, solely because she didn't like the girl he was dating. She then had the nerve to get pissed when he rejected her. She also openly admitted to cheating on her boyfriend on the phone with me a month prior. So, out of spite, I went out of my way and messaged her boyfriend letting him know that she had been fucking a senior who had graduated while dating him and that he would do good to message the guy (I talked to him and he sent me evidence, which i never got to send because her boyfriend blocked me. Which was expected.) And like I expected, she told everyone i was lying. Literally, the next day I could hear her whispering to a guy that "she told my boyfriend I was cheating". She even tried to turn my own friends against me, luckily, none of them believed her because we all knew the senior she was seeing while she was with her boyfriend. Surprisingly, her and her boyfriend are still together. He is on the spectrum and his friends want to tell him about her cheating but are afraid he will un-alive himself if she leaves him. Now, the reason I feel bad is because C comes from a pretty shitty background. A few weeks prior she was put in a mental hospital for an attempt. And I was the first to talk to her when she was released. I feel bad for dropping her after something so traumatic but seriously, it was hard being her friend. She would flaunt her self harm scars. (And i seriously mean flaunt. She would show everyone. She would even compare her scars to mine) there is so much more, but i don't want to turn this into a vent. Sorry for the poor formatting, it's late. So, AITA?