I hate him but LOVE HIM?

im going through the same thing kind of, this guy found out that i liked him before, i was the one that told him, but i told him i got bored of him because.. well i did.. but he thinks i still like him and hes a big flirt around me, but when hes around his friends its a different story, and hes a big *** hole .. he says hes not, but i think he is.. like when hes with his friends ill walk by and hell be like HEY YOU! ;) and look at his friend and say something and laugh and say "watta joke" or somthing, but when hes just talking to me, its like "so wanna hang out or something :)" but he has a gf, and we never do get to hang out because of that, and i kinda am starting to like him again, and he knows , and knows i just dont wanna tell him because of our past and knows i dont wanna get hurt, so hes using this as an advantage but i know hes just trying to be nice an flirty to my face and stuff to get me to like him , and he says **** about me behind my back , and im just gonna get f'ed over in the end again like always.. i know this isnt helping your question any... but maybe this guy is doing the same thing to you as the guy i know is doing to me