Zoe Forgot?

"Zoe, wake up," Jon said, shaking his sister awake. "What? Jon, what the hell ... what are you ..." she began to say, but then stopped and looked around. "Why am I in your bedroom?" "*My* bedroom? Zoe, this is *your* bedroom," Jon said. "Are you kidding me?" she asked, quickly getting out of bed. "This is obviously a Goth's room and *you're* a Goth." Then she left the room. What the hell was up with Zoe? Did she forget who she was supposed to be?