This is a song of a crazy girl like me to the guy whom she's so crazy in love ("torete")with--whom she always daydreams about, wishing she was there by his side, wishing he was romancing her, or more likely, wishing that she was romancing him--although she knows (and emphasizes) that it's only a short-lived crush, an intense infatuation, but not real emotion and definitely not love--just simply being "in" love.
This is a song of a crazy girl like me to the guy whom she's so crazy in love ("torete")with--whom she always daydreams about, wishing she was there by his side, wishing he was romancing her, or more likely, wishing that she was romancing him--although she knows (and emphasizes) that it's only a short-lived crush, an intense infatuation, but not real emotion and definitely not love--just simply being "in" love.