Did Chris Martin Have An Affair?!

Heartbreak, Sex

Did Chris Martin cheat on Gwyneth Paltrow while they were married? Get the details.

Before their "conscious uncoupling," it looks like Gwyneth Paltrow and Chris Martin had some real problems in their marriage.

A source told Page Six that the Coldplay frontman had a severe wandering eye, including an affair with a Saturday Night Live assistant. "He had an affair with a woman who was backstage and was part of an entourage," the insider said. "Everyone was talking about it because he was openly flirting with her at one of the show after-parties."

Martin was previously linked and photographed with actress Kate Bosworth while still married to Paltrow.

Meanwhile, sources told People that the couple had an "open marriage," and that "if Chris was playing around Gwyneth didn't care."

Or did she?

Still, reports say Paltrow played around herself, with rumors of romances with Miami billionaire Jeff Soffer in 2008 and more recently, entertainment lawyer Kevin Yorn -- both of which her rep has denied.

Sounds like Paltrow and Martin unconsciously uncoupled a long time ago.