It is a difficult situation for all of them. I think first Amy wants to provocate Brian a little bit with her missing armband because he is a G4. Carol directly shows Brian that she has got her armband and her journal with her. She is hopeful that Brian checks Amy´s journal, too. I think Carol is a little bit ashamed that Amy heard what she thinks about her boyfriend and her. So Carol reacts a little bit agressive and Amy is a little bit shocked of the situation.