While Cynthia Bailey was the first to confront her Real Housewives of Atlanta co-star Phaedra Parks about rumors that her estranged husband Apollo Nida cheated, speculation swirls that Bailey's husband, Peter Thomas, might not be 100 percent faithful either.

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Parks and Williams dished on Bailey and Thomas in a clip of Sunday night's episode of the Bravo show. They recapped Bailey and Parks' conversation in which Parks told Bailey she didn't appreciate her bringing up Nida's rumored affair. But Williams and Parks made it clear Bailey might have a little "dirt" of her own.

Parks said, "If I say half of the stuff I know about her, it would be quite not nice."

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Williams asked Parks to clarify if the news was about Bailey or her husband.

Parks said, "I know stuff about both of them."

Williams then implied that Thomas was cheating, and that Bailey was aware of it.

"She knows about what Peter has going on. That's why it's not in the rumor mill. When the woman already knows, what's the point of spreading stuff about that?"

While Bailey remained silent on the matter via social media, Thomas had plenty to say.

He tweeted, "The [stuff] these women makeup to deflect WTF is happening in their lives is funny...My marriage is solid. Can't say the same for them."

From money woes to family members interfering a little too much, Thomas and Bailey have had their issues in their marriage, but this could be the first time cheating rumors have gotten thrown into the mix.

Take a look at the clip.

The Real Housewives of Atlanta airs Sundays at 8/7c on Bravo.

Tags: The Real Housewives of Atlanta Reality TV Bravo