As Catherine talked to Warrick about him staying with her, Greg lost track of the conversation and noticed Nick standing in the background, looking like he'd never seen him before, kind of distressed.
Greg wondered how he should approach the subject, he didnt think Nick would be very keen to share with him. "Nick, I think there's something wrong with the engine of my car, it didnt sound too good."
Nick agreed and they went to look at the car. As they inspected the engine, Greg started to talk to Nick about the case, but he didnt seem particularly. Greg then just cut straigh to the point. "Man, are you ok? I mean you dont seem your usual self."