Sansa is truly one of the best characters and her development is fascinating
I'm glad that over the years Sansa has become one of the most popular character's of both the books and the show, but I also find it frustrating that some people, especially in the media like to vilify her for no reason other than mistakes that she made years ago. Starting from the time she "lied" to the Lannister's about Joffrey and Arya's fight in the Riverlands which ultimately led to the death of Lady. When that happened, Sansa was still only a child and very naive about the world and what t
But Ned's conversation with Cersei didn't even lead to Cersei killing Robert. Pure timeline info:
Ned talks to Cersei at sunset 3 days before the intended sailing off to White Harbor with his daughters
Robert effectively dies on the day that Ned and daughters were to sail off.
Robert was brought into KL, surprisingly still clinging to life, the night before. In other words 2 days after Ned talks with Cersei.
Renly says to Ned it took them 2 days to carry Robert from where he