Nate and Serena decide to explore the boundaries of their friendship, while Blair suspects Chuck is having issues forgetting about the woman he saw at Bart’s grave, whose identity is unclear.
"[Chair] are in stories together every episode for the rest of the season...Nate and Serena in the closet, on the dapur floor... 9 1/2 Weeks in 9 1/2 seconds. D/V learn they're better as 2some than 3some"