The Miantang/Xingzhou slap scene is extraordinary!
The emotions she's channeling and the simultaneous heartwarming and heartbreaking context has me so impressed aeomtional! The war journey they share is both the height of their relationship at the time, and the beginning of the end of it. I've saw this happen in 1-2 other historical dramas since then, but this one gets me the most, because the tension and depth is much greater. Unforgettable.