Did Gwyneth Paltrow's cheating ways lead to separation with estranged husband, Chris Martin?

Rumors have now swirled that the actress may have been unfaithful to her husband after a picture of her kissing her ex-boyfriend Donovan Leitch back in Sept. 2013 went viral. See here:

Radar Online pointed out that Paltrow and Leitch attended a Los Angeles Dodgers game last fall with her kids, Mason and Apple, but without Martin. At the time, Leitch was married to Scottish model Kristy Hume, even though the couple later announced their separation. 

Paltrow and Leitch dated before she dated Brad Pitt.

Reports also surfaced this year that Paltrow was dating Kevin Yorn, who is a lawyer. 

However, the Oscar-winning actress's spokesman Stephen Huvane denied the rumors.

"The story is absolutely 100 per cent false," Huvane said. "Gwyneth knows Kevin casually through business contacts. She is not at all romantically connected to him."

On Tuesday, the couple announced in a joint statement that their relationship was 

"It is with hearts full of sadness that we have decided to separate," the statement said. "We have been working hard for well over a year, some of it together, some of it separated, to see what might have been possible between us, and we have come to the conclusion that while we love each other very much, we will remain separate."

The couple, who are close friends to Jay Z and Beyonce have been married for more than 10 years. They have asked for privacy for their family during this time.

"We are, however, and always will be a family, and in many ways, we are closer than we have ever been," they said. "We are parents first and foremost, to two incredibly wonderful children and we ask for their and our space and privacy to be respected at this difficult time.