Okay, so we actually have an interesting insight into Renee here - She's a compulsive liar; she said something about Brun that Elliott knew was false (and, one assumes she knew that he knew was false) but said it anyway as if it were true. She also moves on from that without an eyeblink, which suggests that this is something she does a lot and doesn't mind being called out over because it doesn't matter to her.
Then there is the advocacy of violence; one assumes she is just joking but, again, Elliott's behaviour just doesn't seem to back up that assumption. Either she likes playing with his head or there is something quite concerning about her essential nature here. I can't quite put my finger on it but Jeph really scripted her weirdly today.
Meanwhile, something tells me that, when Brun wakes up, she will be able to define 'headache' with a precision no-one has before.