It's no secret NeNe Leakes has been a bit more outspoken on this season of The Real Housewives of Atlanta, but now her no filter attitude might end her longtime friendship with her co-star Cynthia Bailey.

Cynthia Says NeNe 'Crossed The Line' After Calling Husband B-Word

In a sneak peek for the next episode of the hit Bravo show, airing Sunday, March 30, Leakes and Bailey have a huge fallout after Leakes calls Bailey's husband, Peter Thomas, a b---h for the second time this season.

Bailey, who was a bridesmaid during Leakes' second wedding to her husband Gregg last year, vented to Thomas about a heated argument that escalated after Leakes insulted him.

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"NeNe, you know, called you the B-word. That's when it got extremely uncomfortable for me because there's nothing that Gregg Leakes could ever do to make me [call him that]," Bailey said. "There's nothing he could ever do to make me say those words to him and in front of his wife."

Thomas chimed in and added that it's hard for him to move on with Leakes after she hit so far below the belt.

Bailey said, "I think it was completely disrespectful and out of line."

Thomas insisted that Bailey needs to talk to NeNe about it. At that point he just wanted to steer clear of NeNe rather than proving her point.

The clip then cuts to NeNe and Gregg, who were also talking about the whole ordeal. Gregg confessed his main concern was NeNe and Bailey's friendship.

"I definitely want to try to sit down and iron that out. It ain't that big of a deal. It ain't friendship breaking. It's not that type of deal," Gregg said.

Bailey, on the other hand, did say she thinks she and Leakes should be able to talk to each other about anything. However, she was prepared to cut ties with NeNe and Gregg if the talk didn't go well.

"I'd rather not be friends with them if that's gonna be the case," she said.

The Real Housewives of Atlanta airs Sundays at 8 p.m. in Bravo.

Tags: The Real Housewives of Atlanta Bravo Reality TV