Why doesnt she like me?

Why wont she go out with me? instead of the usual "ayoo whats good shawty ama try n holla achu yo *** be lookin DUMB good in them jeans yo" before i asked her out, i did it romantically. I took my guitar outside her window at like 1:30 am after watching from down the block for a few hours until I knew she was going to bed (I covered my eyes when she got changed of couese). Then, I attempted to serenade her, actually i dont know if serenade is even a word, but I sang her a lullaby. She peeked her head out the window and yelled words too vulgar to type here, but some other words were "weirdo" "creep" and "F***ing loser!" the next day she wouldnt even accept the flowers i brought to school to give her. wtf?