These 15 couples dated while working on their shows, sometimes playing a couple on the show while also dating in real life. Either way, those relationships (and the subsequent break-ups) definitely had an affect on their shows.Here are 15 couples whose real-life romances ruined their shows.Mila Kunis and Ashton Kutcher ("That '70s Show") On the show: Kunis' Jackie Burkhart and Kutcher's Michael Kelso shared a natural chemistry on the sitcom.In real life: That may be the reason they started dating six years after "That '70s Show" wrapped in 2006; they put a ring on it in July.When Jess wasn't with Rory, his nose was perpetually buried in a novel.
But they are a reminder that, at least for now, Hollywood love stories are still possible after the director shouts "Cut! Alexis Bledel and Vincent Kartheiser ("Mad Men") On the show: Kartheiser's flawed Pete Campbell is married, but can't resist the charms of Beth Dawes (Bledel), who has troubles of her own.
In real life: The "Mad Men" set seems particularly conducive to relationships.
Slattery and Balsam were married in 1998 and, despite their characters' conflicts, seem anything but "Mad" off-camera.
Playing Rory Gilmore and Jess Mariano, respectively, Alexis Bledel and Milo Ventimiglia were each other's love interests on and off the set for a stretch.
RELATED: These 9 celebrity couples shared on-screen romance in films Their real-life 2006 breakup, however, may require them to keep things professional should Ventimiglia return for the show's Netflix limited revival, because Bledel wound up marrying another on-screen beau.