Doing the scenes with Peter is fun because he's so funny and we get on really well...It's nice because we both really understand the relationship that they have. They have this unspoken trust - she's so much more open with him than she is with [other people]. You can see she's a lot more relaxed around him, even if it's just a snarky comment, she wouldn't say that to someone else in court. She doesn't want to trust him because he's a Lannister but she knows that she can. It's really sweet.
