How do i get my girlfriend back ?

Im 15 ...... Since i was 13, i was in love with girl X. I started going out with Girl X 4 months ago. Now her mom have come to know about it and my aunt also. They have screamed at her n at me. We have both received severe scoldings. They say we should just study. Finally, late last night Girl X phoned me and told me that she never loved me but only pitied me and broke up , i was very desolated. Now today i know that yesterday her parents had screamed at her a lot ..... What should i do ? She told me not to phone her because her dad has confied her mobile phone. I really want her to come back. Please advise me.