This final season of Girls has delivered one excellent, unexpected plot twist after another, from character revelations to the recent mini-play, in which guest star Matthew Rhys played an author either victimized by, or victimizing, Lena Dunham’s Hannah. Tonight, Hannah’s mom, Loreen (played by Becky Ann Baker), comes home to roost – or, at least, her problems and issues do, as Loreen comes to visit after separating from Hannah’s father.