Heartbroken, what should iDo?

So obviously iAm heartbroken. iWas going out w. this boy (Christian) and he broke up w. me 'cuz of this girl Alyssa. But luckly they never went out w. her. well, cuz she 's going out w. jeremy and now he is going out w. the ugliest girl in school and it doesn't make any sense. Now iAm so crying and listening to sad music. He broke up w. me at the begining of November but he still flirts w. me. iAm so confused. iCan't get over him. iStill love him. What should iDo?