This discussion may contain spoilers!
At the foundry, there's a board with pictures on it. One is of Bigby and Faith from the first night. If, as some believe, Faith was already dead, and that were Nerissa, wouldn't Georgie know which girl was at the Woodsman's place? Also, obviously, the Tweedles know that "Faith" was with Woody. If that had been Nerissa, shouldn't Georgie have figured out that Nerissa was the one who dumped off the head and gotten Bigby involved? Why is no one punishing Nerissa for her lack of discretion?