I think she might be his baby, but I don't think it matters. The title of the episode was the L..............O................N............G Con. If I remember right Cassidy wanted Sawyer to teach her everything he knew about conning. It kinda turned her on. She wanted Sawyer to let her be in on a long con. It seems like all the shows I've ever seen with grifters (a VERY scientific study, haha) there were always multiple layers of cons going on at the same time, with everyone trying to end up on top, so the warden might be using cassidy, who might be using the warden, who might be trying to get at Sawyer, who might be trying to get the money, while Cassidy uses Clementine (an orange?) to get the money from Sawyer, who used the warden to get out of prison early, etc.. etc., etc...........