Such an amazing scene and seeing it written makes me respect those two actors so much more. There isn't really a lot said on the page but their acting really sold that scene and made it spectacular.
I can't imagine being the writer on the show who wrote that and then saw it acted by those two. I'd have thought I was the best writer ever but the writer had a great analogy and it was the actors that made it sing (and director, editor, producers, etc.)