Chris Martin reportedly had an affair with SNL assistant

Gwyneth Paltrow's not the only one who could have had a wandering eye.  Chris Martin's name is in the rumor mill after the couple's separation announcement.

Rumors are swirling now about Chris Martin's infidelity with a Saturday Night Live assistant.  The New York Post reported Martin had an affair after his appearance on the show.

The Paltrow/Martin marriage reportedly was an open relationship, with both parties said to have had affairs.

The Post source said, "He had an affair with a woman who was backstage and was part of an entourage. Everyone was talking about it because he was openly flirting with her at one of the show after-parties." 

Martin has also been linked to actress Kate Bosworth.  Paltrow, as MStars previously reported, billionaire Jeff Soffer.  A rep for Paltrow said, "We have time and time again denied any romantic relationship with Jeff Soffer and Gwyneth. Your source is either wrong or fake." 

According to RadarOnline, Paltrow had made a habit of having her eyes wander.  Reportedly, the Shallow Hal actress cheated on Brad Pitt with John Hannah, her Sliding Doors co-star.  In the rumor-driven report, Paltrow also reportedly cheated on Ben Affleck with Viggo Mortensen.

Paltrow and Martin have two children together: daughter Apple, 9, and son Moses, 7.