Me and my gf broke up HELP:(PLZ?

me and my girlfriend have broke up yesterday....as we argue alot lately and we argues yesterday and she is like its my final year and i wanna get good in grades and that this is to much for her and she loves me so much but needs to be single and that we cant go on...and its sounds serios....what do ido...i love her so much....she keeps talkin bout how happy she is we still talk after the break up and that we will get over eachother with eachothers help and i dunoo and its killing me....she sed she dusnt no why she needs to be singel but she just needs to what do i do please?i need her in my arms and i need to tell her i love her and she is like we shud stop sayin i love u and this and that...:(