Tamra Judge
Watch Tamra Judge on “The Real Housewives of Orange County” Mondays at 9 p.m. EDT on Bravo. Bravo TV

Gretchen Rossi no longer stars with Tamra Judge (formerly Barney) on Bravo’s “The Real Housewives of Orange County,” but that doesn’t mean the drama between the on-again, off-again frenemies is over.

In response to Judge’s recent custody battle with her ex-husband Simon Barney over allegations of child neglect, Rossi, 35, a former star of Bravo’s “RHOC” for five seasons, took to the tabloids this week to side with her past co-star's beau over claims that Judge, 46, is an unfit mother.

“She cares more about the ‘RHOC’ than taking care of her kids,” Rossi told Life & Style, adding that Judge’s 15-year-old daughter, Sidney, moved out of their home because she couldn’t “deal” with her reality TV star mother.

Rossi’s decision to speak out against the infamously outspoken Bravo personality resulted in a public lashing from Judge Wednesday night. “This nasty b---h will do anything to stay relevant, GO AWAY!” Judge posted to Instagram (in a since deleted rant) adding, “You know nothing about my life or my kids.”

Although Judge, also mother to Spencer, 13, and Sophia, 8, bashed Rossi’s tell-all interview, she ended her rant by wishing the best for the fallen Bravo star. “I pray that one day you have the happiness and beautiful children I have,” Judge said. “I pray that you children are not hurt by divorce and their names are not drug [sic] through the mud by people like you.”

While Rossi has since denied speaking ill of Judge's offspring, the O.C. starlet doesn't appear to be buying it. “Haha. She is evil nasty,” Judge told one fan on Twitter Wednesday. Judge continued by giving a dig to Rossi for her choice in a life partner, longtime controversial "RHOC" star Slade Smiley: “Hello, look who she sleeps with.”

Barney filed a request to modify his child custody agreement with Judge in March. According to Radar Online, paperwork filed by Barney accuses Judge of being negligent with their children’s nutrition and hygiene. Their teenage daughter, Sydney, has also since alleged that Judge was “verbally and emotionally abusive,” a claim which Judge vehemently denies.

“The Real Housewives of Orange County” airs Mondays at 9 p.m. EDT on Bravo.