Jacqueline Laurita and Teresa Giudice's friendship is officially over.
While taping the Real Housewives of New Jersey reunion special at Atlantic City's Borgata hotel September 7, the costars grew even further apart when cookbook author Giudice, 40, accused her ex-BFF, 41, of hiding her own Las Vegas stripper past, a source tells the new issue of Us Weekly. (Giudice had recently devised a scheme to convince the public her sister-in-law, singer Melissa Gorga, 33, was a stripper.)
Giudice's jab came just a month after Laurita revealed that her son, Nicholas, 3, had been diagnosed with autism. (Laurita is also mom to Ashley, 22, and Christopher, 10.)
"Jacqueline goes crazy on Teresa and everyone sides with her," says a source. "Even [host Andy Cohen, 44] seems disgusted Teresa goes there. She's going through a hard time with her son, and it just below the belt."
Giudice -- mom to Gia, 11, Gabriella, 7, Milania, 6, and Audriana, 3 -- also lashed out at cousin Kathy Wakile, saying she's heard her marriage of 21 years is on the rocks. (A source denies Giudice's claim, telling Us Kathy, 47, and her husband, Rich, 48, "are attached at the hip.")
For more details from the three-part special -- including how Joe Gorga, 38, "loses his mind" while trying to patch things up with his sister Giudice -- pick up the new issue of Us Weekly, out now.
Part one of the Real Housewives of New Jersey reunion airs Sunday, September 30, at 10 p.m. EST on Bravo. Be sure to follow @usweekly on Twitter, where editors will live tweet during the show.