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: Back in high school, I (22F, 16 at that time) was friends with this guy my age. It was purely platonic. We had a close group of friends and had a great time. I used to be a very quiet kid who got very emotionally invested in *everything*. One day, he suddenly stopped talking to me. I never found out why but apparently something I did triggered it. He never explained even though I asked several times so I still don't know if I did something bad. That period of time really upset me. A couple months later, he decided to "forgive me" and we made up. Another 5 months later, he cut off all contact again with no explanation. He had many issues and was always burning bridges with people and I did not need that drama in my life. He'd make a big deal of avoiding me/whispering/being strange when I was in the room so I started being very vocal about how I hated him. He'd try to get "his friends" to be super exclusive and cut off people who were "my friends", which was a real dick move, but it just ended up backfiring on him and most people disliked him. We graduated that way. 

Fast forward several years. I am now rather blunt and sarcastic. I attended an award ceremony/ball event that usually doubled as an alumni reunion. I ran into him and he tried to strike up a conversation. I don't hold a grudge anymore. I barely even remember what happened, but I know it had been the most emotionally stressful time in my school years. I told him that I wanted nothing to do with him and to not waste both our times making small talk. I had no interest in reconnecting and since I went to college out of state, we were probably not going to run into each other ever again. My friends panicked and separated us at that point. 

My friends understand my reasoning but told me that it was rude and that small talk never hurt anyone. In highschool, he was an asshole. I was probably an asshole back. AITA for not wanting to be friends? Was I too rude? 

not wanting to be friends