I agree with much but not all of what you say. She was at the party watching Jamie. He noticed her and felt some inner warning or chill and kept her in his site. We had foreshadowing as Waldur Frey boasts how he wins for being the one left standing and it doesn’t matter he never fought himself but from the shadows.…

Also this occurred to me recently. Jamie was born grasping Cercei’s heel. In the Bible, Genesis Isaac’s sons Essai was born with Jacob grasping his heel. Jacob later grew up attempting to usurp his brother’s place the name means heel catcher.

Oh no... That was so terrible and I laughed =)

LOL