The conversation between human and AI assistant.
Did Tywin sleep with Shae out of pure spite?
Interesting. And how did Tywin and Shae even meet in the first place?
In the show, it's shown that Tywin first encountered Shae when she was working as a handmaiden for his son's wife, Sansa Stark. He then made arrangements to have her act as a spy for him and pose as Tyrion's mistress. In the books, the circumstances of their meeting are slightly different, but the basic idea is the same.