I begin with my story, A girl I like is my college junior, one of the most talkative and sweet girl I have ever know. We know each other in our college days but after later our friendship straightened on FAcebook. We use to chat for long and long and that to hilarioius. We tried to compliment each other and told that we had a real good time together, soon I got got her number... we started it on messages then on calls, she often told me about what she was doing, what happened with her... and there use to be times that if I didn't got time to call her, she called me back and asked where was I. I ask asked her out on valentine's day. She consented. We met in a public restaurant. Smiled , giggled exchanged gifts. Blushed ! What else better could one expect. Then on the say back she fed me chocolates with her own hands, we roamed about the lonely streets laughing. Then after that we met 4-5 times. I even taught her how to drive a scooty with hands frees (for that I had to sit behind hold her arms, titanic pose ;) <3) we really enjoyed it. In other trip She complimented That I was kind of best son-in-law a mother can ever have. She even liked my idea of sharing the same ice cream. I blushed. Turned pink. But said nothing, We went for movie, even held hand. I thought This is it! We both love her. She even introduced me to her best friends. But then happened, In a college fest, we had a fight. We didn't talked for few days . I approached her friend, who was happy at first but then every thing got messed up. Then suddenly she called me one evening and told that she likes another guy. I thought she was joking, I still think. She stopped talking to me. Then gradually we started talking again. We are the same as before, but she still says there is a guy who doesn't like her talking to me. But one day I met her near her house she even took me to her house. (in India that rarely happens)
She then messaged that " that guy didn't liked that she brought me home". Unless that guy threatens her she is good with me...

I am damn confused. Whether to beat up that guy or simply let her...
She has become important to me, my first and last thought of the day.
I am confused what to do...

Leave her alone. There is someone else in her life.
Your fighting the other guy is foolish and does no good