<human>: I'll try and summarize this as much as i can. Where do I start?... 

My crush, has, over the past 5 years, wanted to see my six-pack, seductively whispered "sex" into my ear, flashed her underwear at me, sent me a love letter and told me face to face that loves me and wants to be my girlfriend. Two of those years were after that when I left to school we went to. 

Since then I haven't been able to get her out of my mind. Literally. She's also hung out with my sister, who she is friends with, and when my sister wanted to take a picture to send home so that I could see it, she changed into a bikini four sizes too small to show off her tits, which, I kid you not, are now as big as her head. And she's only 17. 

However, all of that got turned upside down when over the past summer I messaged her in secret on the xboxes we have, only for her to say she was playing me the whole time and that we are not in a relationship. Having only one other friend, this is devastating. 

So, how do I move on?

Can you condense the text into three sentences or less?
<bot>: Super hot girl flirts with me for 5 years leading me on but doesn't want a relationship after all, how do i move on?