A wise man once said, "thou shalt not lie, for the Queen shall kill thy pet direwolf." Perverse karmic justice is served when Lady is executed as a direct result of Sansa’s actions. The significance is obvious: Sansa ceased being a Stark in spirit when she chose Joffrey over her family, and her symbolic connection with "northness" was fully severed with Lady's death. If Arya-vs-Joffrey was a character test for Sansa, she failed in every way possible way. She betrayed her sister, lied to her father, and upset her future husband and family. Even though she did Joffrey a favor by lying, all she received in return was her innocent wolf’s corpse.
After you strip away all the royal titles and family pride, this was just kids getting into a stupid fight and receiving with a few scars and bruises. It's not like Arya pushed Joffrey off a window ledge or sent an assassin to kill him in his sleep. Despite this, Robert lets Cersei have her way because he was too cowardly and lazy to argue with her. Even though Robert is king, his life still sucks tremendously. He’s in love with a dead girl, his son is a wuss and a jackass, and his wife would rather sleep with her brother. Also, supernatural ghost men invade from the north and the Scorpion King raises an army across the sea. Lastly, he’s become embarrassingly overweight. Robert’s going to be the first king who commits suicide out of depression.
I have two final thoughts about this chapter. First, the Hound is a pretty badass cowboy with his “he ran, but not very fast” line. Second, I can't believe Martin killed off one of the direwolves so early in the book, because I felt very attached to them already. When it was revealed that Mycah was in the body bag and not Nymeria, I was relieved and happy. Repeat: I was happy that an innocent child was murdered instead of a guilty pet wolf.
I spent an inordinate amount of time and words on that last chapter because there’s hardly anything to say about the next one because it's six pages of Bran tripping out on LSD, where he converses with a three-eyed crow and possesses the power of flight. Then he wakes up names his wolf “Summer,” when “Fall” is clearly the more appropriate name, as it signals winter is coming and conveniently summarizes why he’s crippled.