Your interpretations make more sense than mine, considering the specific phrases connected to a movie. Yet I always thought of this song as kim bumping into a man on a train, falling in love, and without words she communicated "You'll kill him and I'll kill her" (as in each others spouses), then loosing eye contact and realizing it was all just her imagination. Regardless of interpretation, this is a very good song.
Your interpretations make more sense than mine, considering the specific phrases connected to a movie. Yet I always thought of this song as kim bumping into a man on a train, falling in love, and without words she communicated "You'll kill him and I'll kill her" (as in each others spouses), then loosing eye contact and realizing it was all just her imagination. Regardless of interpretation, this is a very good song.