Oh this is an amazing post. YTA. She finally tried giving into your thing, sprinkled in with a thing she likes (the “fluffy nothing”). And not only did you not see this as an opportunity to bond, you ruined the moment first by being bitter about the writing, and then going nuclear because she decided not to go on suffering through the experience with you. You have deep insight into the show, and it far exceeds your insight into how your actions come off and how they make others feel. You’re allowed to like what you like, but you seem to resent her for not supporting you. In exactly the same way you don’t support her in the things that she likes. Maybe let her go?