In a teaser for the Dec. 2 episode, a pregnant Zolciak argues with her fellow Housewives about going on a vacation with them before declaring, "I'm done with this whole thing." She walks out on them and shoves a camera out of her way in a huff.
Bravo has confirmed to PEOPLE that Zolciak is off Real Housewives of Atlanta after the Dec. 2 episode.
Meanwhile, Zolciak has said on Twitter that she is leaving the Real Housewives for a spinoff. Earlier this year, she starred in her own Bravo spinoff show called Don't Be Tardy for the Wedding, and Bravo has also confirmed to PEOPLE that a second season, currently titled Don't Be Tardy..., has been picked up.
So is Zolciak's seemingly-abrupt exit by choice? Housewives costar NeNe Leakes is fueling the (gossip) fire with her assertion that Zolciak was fired. And now the former friends have taken to Twitter to battle it out.
"It's so funny how this chick wants people 2 think she quit the show! The producers no longer wanted 2 work wit u! Good bye wit the lies," Leakes Tweeted on Nov. 23.
Zolciak, adamant that she has new ventures beyond Real Housewives, responded on the same day, "I definitely was NOT fired from RHOA I can guarantee u that!!!" she Tweeted. And she clarified: "My spinoff last year was a 1 time thing so this spinoff is brand new! Bye hater!!!!"
Zolciak shot back at Leakes with another zinger. "You are so mad u cant stand it & hold your anger in, u are suppose to have all this stuff going on but ur staying tuned into me #iloveit," she Tweeted.
Reporting by CHARLOTTE TRIGGS