What Happened to Izzie & O'Malley in Grey's Anatomy's Alternative Reality? (VIDEO)

Wondering what happened to Izzie (Katherine Heigl) and O'Malley (TR Knight) in the Grey's Anatomy alternative reality episode (Season 8, Episode 13: "If/Then")? Watch on to find out.

Grey’s Anatomy airs Thursdays at 9 pm ET/PT on ABC.

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