I'm pretty sure the lyric is, "The best thing that happened to you, is the worst thing that happened to me." I could be wrong, but I am listening to this line over and over, and that's what it sounds like. Before this part of the song, the tone drops and sounds a bit menacing before picking up pace and being almost anxious. During this section, the "Yeah, yeah, yeahs" sound more like the narrator is being mocked. Like a "Nyahh, nyahh, nyahh." The song reeks of false hope from this perspective.
I'm pretty sure the lyric is, "The best thing that happened to you, is the worst thing that happened to me." I could be wrong, but I am listening to this line over and over, and that's what it sounds like. Before this part of the song, the tone drops and sounds a bit menacing before picking up pace and being almost anxious. During this section, the "Yeah, yeah, yeahs" sound more like the narrator is being mocked. Like a "Nyahh, nyahh, nyahh." The song reeks of false hope from this perspective.