IMO,this episode was sooo over the place I think they were trying to show us how Henry was going mad like that scene where Lizzie confronts Henry about whether he's slept with CG and is trying to convince him that her and Perkin are tearing them apart he has this look on his face where he's like''omg,what's happening to me'' and with Perkin it's like they didn't know whether they wanted him to be a hero or a villain untill the end of the ep
true he has that OMG face when she talks to him. but the pivotal one is after Henry beats the shit out of Perkin, and Henry is a total wreck and understands that his plan is not working at all and it is destroying him. i think she understand at this moemnt that Henry was playing with Cathy (he still could have slept with her tho, but now she knows it just a play).
So lizzie that the things in charge, and decides to send away Perkin.
Lizzie’s face when she see Perkin didn’t run away… i don’t know if it is anger or sadness, but she seems upset!