This question goes back all the way to Season 1 and if you let Lilly back onto the RV and she later steals it. Before leaving she asks Lee to come with her. If you agree, she'll tell you to go get Clementine and they'll leave, but after stepping out, she drives away. Did Lilly just use Lee to help herself get away? Or was she being serious, but then realized at the last second that she couldn't do it because she wanted Lee to help Kenny and his family?