Viviana, aka drama queen beyond what happens on most of the Real World, said she couldn't handle it anymore or something like that. She blew up at nearly everyone that tried talking to her, for no reason. Heck she made a little speech and stormed out of the cafeteria during the shoot because everyone else was laughing and having a good time. No clue what the hell that was about.
I will say that I was literally scared for the other contestents when she was holding those rifles with LIVE ammunition. She dropped her pistol and kicked it and stepped on it!! Then rammed it back into her holster while slapping the clasp shut, all while surrounded by her co-contestants.