Put a ring on it: Jennifer Morrison and Jesse Spencer met in Vancouver International Airport on their way to film the pilot for "House" in 2004. After they both landied the gig, these two fell head over heels and got engaged during the holidays at the Eiffel Tower.
Cancel the cake: But their blissful engagement was short-lived. They called it quits by August 2007, but still remained co-stars. Awkward.