She looks into the dismal reflection of a man experiencing extreme torment, sitting beside her.
The train stops; she passes him a note that says "I'm sorry, I feel this creature crawling out of my heart and into my brain, cutting the wires and re-arranging the connections."
Not a look in the eye, nor a tear to show the agony of what was once ecstasy of a blossoming flower in his mind.
Just moments later she walks to the back car, greets a stranger with a kiss, and asks him "Would you like to have dinner sometime?"