Who do u wish as ur Girlfriend or Boyfriend and Why?

ok my friend nice way to help others,i was having a girlfriend few days back but i dont know why she said to move on as accept her proposal.coz i have never said no to her so she asked for move oni gave her. but i want to know that why????????she had done that but now i am not in conntact with her.but when we were together she needs me but now when we not studying together she is avoiding me........i dont know i am confused if you have answer than tell me