Like these guy but he hates?

-kk we use to hate each other but I don't hate him anymore I like him but he hates me and have a gf and I did be nice to him and everything strat bugging me did cry but still not working wat to do help plsumm.. its hard to say.. just be nice to him... guys like girls who r nice.. not only nice to him but everyone.. cause we guys actually can see if ur nice or no.. by seeing what u do to other people.. just dont talk to him for 3 days? mayb .. then start all over again like the whole thing is restarted. :) hope that helps.just come to an agreement.. nd become neutral.. nd see where it goes...