Sansa and the Hound first intersect in Game of Thrones on their way to King's Landing.
At that time, Sansa was still a naïve and simple aristocratic lady, born noble, with the love of her parents and the care of others. The hound, who was tall and ugly with a burned face, followed Prince Joffrey like a called dog.
Joffrey reprimands the Hound to his face to scare his fiancée Sansa, and the two are very different at this time, and they don't look like people who will intersect.
At a tournament held to celebrate the appointment of the new prime minister, Littlefinger sat next to Sansa and the second lady and told them the story of the magic mountain and the hound. During the match between the Magic Mountain and the Hundred Flowers Knight Loras, because Loras was handsome and had offered flowers to Sansa, Sansa had a good feeling for him, Loras tricked the Magic Mountain into falling off the horse, the angry Magic Mountain almost killed Loras, and the hound jumped out to save Loras's life.
It was also at this time that Sansa knew a little more about the hounds, and gave birth to some sympathy and gratitude.
Until the death of King Robert, the prime minister's father Ned was accused of treason by Queen Cersei, the fiancé Prince Joffrey cut off his father's head again, his sister escaped, his brother Robb led the army south, and Sansa, who remained alone in King's Landing, was unaccompanied and helpless, full of enemies and eyeliner, no friends.
Joffrey gradually revealed his cruel and cold side, forcing Sansa to see her father and nun's severed heads, Sansa confronted her, Joffrey ordered Sir Marin to beat her, and it was the hound who handed her a handkerchief to persuade her to learn to be less beaten. For the first time, the ugly-looking man showed his gentle side.
His brother Robb led his army to victory, and Joffrey was so angry that he was furious with Sansa, and in public, sir Marin tore open Sansa's clothes and beat her, but was stopped by his uncle Tyrion, and it was also the hound who took off his robe and draped it on Sansa to maintain her dignity.
Joffrey and his party are attacked by hungry people outside, and the hound, as the king of the Imperial Guard, protects him into the castle, but Sansa is chased by the mob and almost raped. Joffrey was now unconcerned about the life and death of Sansa, who was nominally his fiancée, and it was still the hounds who spontaneously went to save Sansa.
A few days later, Sansa met the Hound to thank him in person and praised his bravery, but the Hound only did his part and did not take credit. The Hound was not a knight, nor did he despise the so-called chivalry, but here Sansa he was her knight, always protecting her in times of danger and hardship.
During the Battle of Blackwater Bay, the Hound, who had been fighting enemies outside the city, saw the wildfires burning, and flinched as his brother pushed himself into the brazier when he was a child, leaving a shadow of burns on his hair and face. He insulted King Joffrey, who wanted to go out of the city to kill people, and the Iron Guard of the Royal Forest did not do it, preparing to escape from King's Landing.
Before leaving, he went to Sansa's room, where Tywin's reinforcements had not yet arrived, and King's Landing was in danger of being destroyed. Sansa stayed in King's Landing only as a hostage, and he wanted to take her with him. Sansa believed that she would not hurt herself if Stannis's army entered the city, after all, her father had died for him to inherit the throne, and she had no choice to go with him.
The two said goodbye, the hound had always called Sansa Little Bird, it was her exclusive nickname, before he had always felt ridiculous because of her innocent and simple words, but he was also the person in King's Landing who could never hurt her, she was so weak and simple, she needed human protection, and he was willing to protect her.
The Hound's protection and liking for Sansa is a man's humble and overflowing love for his beloved girl, who is willing to be her knight, and he will never hurt her.
Perhaps because of his special relationship with the Wolf Sisters, the Hound came out of King's Landing and met Sansa's sister Erzhu, who took her as a hostage and wanted to send her mother and brother to exchange for bounty, and he protected her many times along the way. The protection of the little wolf girl is more similar to each other, they are all born killers.
Sansa and the Hound are more like a replica of beauty and the beast.