Co-Star Couples Who Have Broken Up But Stayed Together... On the Set

Big Bang Theory: Johnny Galecki and Kaley Cuoco
Met: On the Season 1 set of Big Bang Theory in 2007
Began Dating: The end of 2007
Broke Up: November 2009
Stayed Together On-Set: Kaley and Johnny kept their relationship so private that no one even knew they were together until after they had broken up... including those involved with the show. Luckily, those years of discretion made it easy for them to continue a professional relationship — one they’ve maintained through the show’s current season. In March 2012, it was announced that Johnny has been quietly dating Pan Am’s Kelli Garner.