Together On Tv…

They dated then split up in real life, but still played lovers on screen. Awkward!

JOHNNY GALECKI & KALEY CUOCO

They say opposites attract, and on sitcom The Big Bang Theory, nerdy Leonard and actress Penny found love and eventually walked down the aisle in Las Vegas. Behind the scenes, Kaley, 33, and Johnny, 44, dated for two years before calling it quits in 2010, but have remained, the actress insists, ‘the best of buds’. For fans who hoped their chemistry would continue to be explosive in real life, she says, ‘Leonard and Penny will just have to suffice!’ The pair ended up renewing their vows and having a baby on screen.

CHAD MICHAEL MURRAY & SOPHIA BUSH

The One Tree Hill co-stars fell in love on set and married in 2005, but split just five months later. They continued to work on the show until Chad left in 2009 – and kept things professional. ‘At the end of the day, we’re grown-ups,’ Sophia, 37, says. ‘When you work with somebody for another half a decade, you have to deal with it.’ However, last year, she remarked that producers manipulated her relationship with the actor, 38.

PENN BADGLEY & BLAKE LIVELY

Blake and Penn, both 32, kept their off-screen relationship secret from Gossip Girl bosses – but ‘they wanted us all to date’, says Blake. ‘It fed their narrative.’ They broke up in 2010 but didn’t tell co-workers as they stayed working together. ‘I don’t know how they did it,’ said co-producer Joshua Safran. ‘It’s a great testament to their acting skills!’

ADAM BRODY & RACHEL BILSON