First of all English isn't my native language so pardon me if I make mistakes. I fell for a girl during my internship. I knew she was plate of one of my friends. But it was a year ago thing. She was all into me when we met . We kissed like a day after we met. Our bonding got good with time. But then we fought over some petty shit. I told this to my friend.I trusted him as a guy friend and he knew her well. He said she's a very good girl and he'll be very happy if we got together. I didn't go there for a day. He went there coz he got jobless. The next day I went there and we all organized a party. He sat beside her and he put his arms on her. I saw all this. He saw me and asked if girl is more important than him in gestures. I just kept my mouth shut. Then we got drunked and he kissed her in front of everyone. She pulled back but then he asked me to buy a rollpaper. I refused but then he went down to buy himself and took her with him. She was acting drunk that night but she knew what she did. The next day she admitted they kissed on the stairs. Then she started to act like how truly sorry she is, and she started to insult the guy but to me she finally admitted she had attraction a year ago But I'm feeling betrayed and fooled by both of them. I'm seriously depressed since then. Self doubts, insecurities, demotivation,. I have started to hate myself.