Kristen Stewart is a cheater! The Twilight star was caught having a romantic moment with the married director of Snow White and the Huntsman, Rupert Sanders.

She apologized via People:
“I’m deeply sorry for the hurt and embarrassment I’ve caused to those close to me and everyone this has affected. This momentary indiscretion has jeopardized the most important thing in my life, the person I love and respect the most, Rob. I love him, I love him, I’m so sorry.”