Married "GMA" co-hosts T.J. Holmes and Amy Robach allegedly had a months-long affair.

The gyan reports that married "Good Morning America" co-anchors T.J. Holmes and Amy Robach left their partners following a months-long romance.

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According to The gyan, they started dating in March while training for the NYC half marathon.

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A source says the duo, who left their husbands in August, were "canoodling" in pubs near ABC News in May.

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One colleague said the couple went to great measures to disguise their affair.

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“They're close on air, but that's expected. However, they were discreet. "GMA's producers are astonished they're having an affair."

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The Daily Mail received new images of Robach and Holmes cuddling and holding hands during outings in upstate New York and the city.

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Two weeks before Thanksgiving, Holmes was photographed pinching Robach's butt as she leaned into a car trunk at a rural cottage.

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