If you haven’t listened to the audio commentary on S4:E2, I recommend you try it. There are four people in the commentary, including GRRMartin, and they have something to say through nearly the entire episode. When they get to the part where Cersei confronts Brienne, though, everyone goes quiet. It’s like they all realized: “Oh, wait, two ferocious ladies are talking! Everyone shut the hell up!”
If they don’t want to interrupt the amazing acting of Lena Headey and Gwendoline Christie, I don’t blame them, but now I’m going to fuck with the scene. The ferocious ladies are talking about Jaime, so I can’t resist.
“Oh, Cersei, he looked so sexy jumping into that bear pit! You should’ve been there to see it!”
“I wonder what it’s like to have people trust you even after you’ve fought for their rivals? I wouldn’t know, because nobody trusts me. Can’t imagine why.”
I may be giving Cersei too much credit here, come to think of it. She doesn’t have the foresight to make a murder look like an accident.
“I mean, he’s a Kingsguard, so he can’t marry me, but I am trying to convince him to run off with me and your little sister-in-law. You should’ve been nicer to my lady’s daughter.”
And then there’s that look. It’s the “deer in headlights” look.
Nah, I jest. I’m sure what’s really going through Brienne’s head right there is more like: “Oh, fuck, she knows.”
That would’ve been a good time for Brienne to say, “No, Your Grace, I don’t feel that way about Jaime. We’re just friends! Nah, we’re not even friends, I’m just here at the Red Keep until I find some other lord or lady to serve.” But she doesn’t even say that.
I think Brienne now realizes she made a terrible mistake in attending the wedding. Oh, it’s about to get worse. It’s about to get so much worse! Then again, Cersei’ll be plenty preoccupied and she’ll forget about her plans to have Brienne killed.