Nate stared, slack-jawed as the cab merged with the traffic and became impossible to spot. That was it.They chose each other.Just then, the dark sky lit up with fireworks. A cab sailing the street honked in celebration . In the night air , Nate thought he could hear Serena and Blairs' laughter, though he knew that was impossible; they were too far away by now.But as we know, in this city anything is possible