GaGa's acting in the last ep is incredible !! She clearly had the best chemistry with Wes ! Thats also why she remembered to thank Wes first at the Golden Globes !
I just noticed that during that scenes where she slitted Liz's throat, her mouth was not consistent throughout the angles tho

It was wide open at the angle where we see her back but then when it witches to her face her mouth is close.
But I still don't understand about her son ...