I am 22 year old male. There was this girl who was very close to me and we literally used to share a lot of things.She was always afraid of losing me and always use to say she will never leave me no matter what.She was in love with her another bestfriend and i supported her and told her to tell him how she feels. She did but both of them didnt wanted a commitment so they reamined as it is but my friend began growing obsessive for him. She used to hangout with her crush and 2 of his friends which were also apprantely her bestfriends as she said. It was going all ok. But then as i thought she was very obsessive about the guy i started hating that situation. She began doing a lot of small mistakes due to her negligence towards other things. All she wanted was him and to hangout with him. I began scolding her and explaining her to avoid these for her good. In meanwhile i started falling for her. Whenever i used to scold her i didnt use to feel good and always used to ask her what if she leaves me to which she used to say she will never leave me. She used to share each and every details of her life. And one fine day after i accidently logged into her FB account i found something very disturbing,something which i never thought my friend will do.She commited a very big mistake and that too for that guy. I scolder her a lot and told her i dont like whatever there is between her friend and her. She said she regrets her mistake and wanted me to stay. I was ok,but now she started talking less and used to tell that she is busy thats why. I got insecure as she was never busy for me and started worrying a lot. I asked her whats the problem but all she said was she is busy and started telling me that she is not liking how i am getting insecure about her. One fine day after a lot of senti calls and messages we met and i told her that i have feelings for her but I dont want any answer as i just wanted to get these feelings out of my heart as i wanted to be honest with her. I told her i dont expect anything and love whatever realtionship we have. She said its okay and told me that everything will be fine and she needs a little bit of time. Our exams were approaching and again she started doing the same thing.She stopped talking to me.I asked her to meet me once after the exams to which she agreed and after a day she said she have made a plan to go for a movie with her crush and asked me if we can meet some other time. I got angry because now a days she was doing all these things. She was not giving me any priority and respect. I yelled a lot to her and she said she got hurt and never expected this from me. After that she said now she is not comfortable with me and cant reciprocate in the same way. After a lot of messages and calls she said she doesn't want this frienship and wanted me to leave. I tried to save a lot. I apologised a lot but all she wanted was to end this frienship. She surrounded her world around that one person and when i tried to correct her she kicked me out of her life. I am sad because how easy it was to let this friendship go when she promised she wont leave me no matter what. She blamed me for each and evrerything and now we are not even friends anymore. She seems to be happy after leaving me because she still have that guy to hangout with. She left me alone when i needed her the most. I am suffering a lot. I cry daily. I resist myself from sending her any message but its becoming very difficult. What should i do?