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: Warning bad english :/

My best friend (S) made a skype group with around 7-8 people.  She invited me too. Everyone you need to know are S, L ( S best friend too) and A ( we never liked each other).

S got closer to L and we all wanted to meet up. So he drove to her and I decided since S knows L longer not to be as clichy and only come by for a day and drive home the next day. The moment I came by S was acting strange. Only on her phone, not talking etc. I admit L was really obviously interested in me. But I swear I tried to get her into this conversation, but she refused. She had a little breakdown, we told her that we werent purposly trying to 3rd wheel her and we were fine.

L drove home and it was quiet. Up until I met L again. What about S? We planned to tell it kind of casually, but oh god. She shouted at me that I didn't told her asap ( it was LITERALLY the day L got his traintickets). But oh well, I apologized.This weekend L and I got together.

Shortly after she told me that SHE loved ME. I felt bad for her and yes I kinda understoot why she was so sad the day we met and was so mad when I told her that I was going to meet L again.

Nobody knew about my relationship with L. There war this party and I decided to take L with me. I told S beforehand that L will be attending this party, and she was mad again.

Partyday!  Short: She was really heartbroken but we all apologized and it was fine again.

THEN A found out about what has happened though S. And started harrassing me whatever I did. She wrote in the groupchat things like "Do you know the feeling when you're so mad at a friends friend that you wanna just hit them?" Obviously talking about me. I was hurt. So I begged S to not talk to her about me since she's so agrassive. She agreed. Our friendship went downhill fast. We were fighting ALL the time. One day S was like "Omg guys I love you all" and me being a mad girl on her FUCKING period answered with the ironic "Oh sure you do" and things started to get out of hand since A, S and another girl were attacking me really bad and I left the group.

I was just tired. She sweared that after I left she tried to calm the other two agressive girls down and that she really didn't knew what she was doing. WELL shocker ,L had acces to all the conversations AFTER I left. He send me screeshots. The only thing she FUCKING did was a little "stooop itt" after I left. I ended the friendship. She sent me a last SMS where she said that she is the victim since I broke her heart and I as her best friend didn't told her about my relationship and that she things I'm rediculous for ending the friendship because of A.

The next two months she wasn't going to school. And if the was there she always left before we had a sharing class. And tbh since she were never a good student I think she won't pass this year and I feel shitty because it's my fault.

Am I the asshole here for leaving her espescially after she told me her feelings towards me?

ending the friendship because she loved me