Who does he really like? Me or Her?

Ok, so me and this guy has been hangin out for 7 years now. At first he liked me && i didnt know, then i liked him && he didnt know. Then a year later we started havin . He has NEVER had with anybody else and two years has ped. He got this girl friend a year ago and he cheated on her twice with me. Then they broke up and he got back with her but he STILL cheats on her with me. I am SO in love with this boy. Like everytime im around him it makes me feel these erflies in my stomach and there is nobody around us but me and him. Nobody else in the world. He ditches her ALL the time, dodges her, lies to her, ignores her texts half the time. During that WHOLE time he is with me. Ya know? I hate puttin her through that but l love him to death more than ANYBODY on this earth will EVER love him && its SO hard to let him go. i do anything and everything i can for him. I just need some advice of what i should do. Keep this in mind he wont even kiss her but he will have with me. I just REALLy need some advice. If ya'll need anymore details or anything just PLEASE let me know && i will be SURE to answer ya'lls questions