:( Im head over heels for him...help me please:(?

Ok...i really need some help on this one. I am 15 almost 16 and i started out my sopre year mot liking anyone in the whole school. I had no interest in anyone. That was until i saw him...(John) I never thought it would come out to be anything. We started talking and flirting and making each other happy. Soon we started to hang out and kiss and hug. I caught myself thinking about him in cl, at work, just every where i couldn't get him out of my head. I soon fell in love with him. But 6 months later he got a girl. But the sad part is...when we look at each other its like nothing else. His eyes hold mine and he wont look away. He's just so breathe taking. His gorgeous blue eyes and him all together. I kind of feel bad because the look his gives me is so...hard to explain. He doesn't even look at his girl the way he looks at me. I cant help it ive tried to get over him. It worked...until i saw him in cl on monday and everything just flowed back and we flirted and laughed. No one can replace the times we had laying in each others arms laughing kissing standing out in the parking lot looking at each other and snuggling. I just love him so much and i think he feels the same the way he acts towards me. But today he asked me to come over on wens and thurs to hang out and watch movies. I want to go so bad but i don't want to be a hope wrecker...you know? I told him that he would be very tempting to kiss and he said that i would be too and that no one has to know...and that just makes me want to do it even more. I just cant express my feelings for him enough. Every time he touches me calls me texts me i smile and laugh and he just makes me so happy...i just don't know what to do :( Please help me im head over heels for this boy:(