Two episodes ago, the Stark sisters reunion finally came ... In that same episode where Arya meets Ed Sheeran, the Hound returns to a farmhouse that he and Arya visited long ago, and is forced ...

Despite Catelyn Stark being dead by the point this fight happens, Brienne was honor-bound to protect Arya, who was traveling with the Hound at the time. That's why this moment makes the list.