 When Alex wants to spend time with her ex-lover, Seth says "X" must make room for "I" and "U." But Seth doesn t know that Alex s ex is a woman. Meanwhile, Julie has a makeover idea for the Newport Group with an ego-driven magazine. Lindsey falls victim to booze when she joins Marissa and Summer for a girls night out, while Ryan, Seth and Zach have a safe guys night in at the Cohen house with movies and video games.