So she has an understanding that the main characters in this series will be killed at some point. So she has warned George that if he somehow kills either Arya or Sansa, she will separate from him.
She also told Maisie Williams, who played the role of Arya, about this and asked if he had said that she was going to be killed. Later, she jokingly told George R.R. that if she wanted to save her marriage, she would have to keep Sansa alive.
"Wife did actually say that if he ever kills off Arya or Sansa, she's going to leave him,"
"I'll just keep smiling, and say 'If you want to stay with your wife, you've got to keep me alive!'"
In 2016, George said this with a smile on a panel in Mexico.
"She does have a favorite character, and she has threatened to leave me if I kill that character,"
"So I have to be very careful about that."
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