Girls please answer this question?

So there is this girl I used to be friends with until she moved to a private school about 3 or 4 years ago where she apparently forgot about me. But at a tennis camp this summer we were both there and I talked to her maybe once or twice before it ended (although I will be seeing her every Tuesday and Thursday after this month for tennis). But I just can't get her out of my head and I have never felt this way about a girl before. But when I sent her a friend request on facebook she declined even after I reminded her about us being friends before she moved. And after a while I just rewrote the song bohemian rhapsody about her to put my thoughts about her down on paper. If you found out a guy rewrote a song about you would you think he is obsessed?