Spoiler I've not seen the episode yet, but I feel like I already know what happens. I was reading a twitter thread the other day about writing styles - Plotters and Pantsers. It was basically saying, if I remember right, that GRRM is a Pantser, and when the TV show had to deviate from the books because GRRM writes incomprehensibly dense character development for things that don't matter (Owing to being a Pantser) and fell behind the TV schedule, the TV show became a Plotter because it had a definite end point in sight (X episodes away), so they know where they have to get, and how long they have to get there - So some on-screen character development sacrifices are made. Which is why Danny is suddenly a homicidal maniac with very little change time for us, the viewer. It sounded like a lot of making excuses for a TV show that's on a downward spiral - But I'm trying to temper that thought with the knowledge that the show bores me and I am definitely not its target audience.