at the prom night you don't have a partner and use Bruce to get attention, Bruce knows that, then during the prom in a crowd he approaches you

"I know that dress is karma, perfume regret, You got me thinking 'bout when you were mine, And now I'm all up on ya, what you expect? But you're not coming home with me tonight, You just want attention, you don't want my heart, Maybe you just hate the thought of me with someone new"