Kristen, how could you??!! Actress Kristen Stewart released a formal statement this week acknowledging that she cheated on her longtime love and 'Twilight' co-star Robert Pattinson with Rupert Sanders, her married 'Snow White And The Huntsman' movie director.  But Robert need not worry as fans step up to defend his honor.  The infidelity drama has driven one Team Edward fan to tears, and it's all caught on camera.