It's clear Joe Giudice is no fan of Joe Gorga, but on Sunday's episode of The Real Housewives of New Jersey, Teresa Giudice learned the hard way just how much her husband dislikes her brother.

Finding out his wife was confronted by her brother at Kathy Wakile's pool party, Joe, 42, flipped his lid, and went on an expletive-laden tirade about why she should shut out the Gorgas for good.

VIDEO: Inside Joe's anti-Gorga tirade

"You're a f--king idiot for even going to going to f--king talk to your f--king retard brother. I don't give a f--k. I would say 'You know something, Joe? Save it,'" he seethed after his wife recounted their conversation. "We can't get along with those people. They're jealous, no-good idiots. I don't want to hear about them any more. When I say something, you f--king listen -- and shut up!"

Though Teresa, 40, dismissed his ugly taunts because "he's a Gemini," the mother of four was put in her place when Joe issued a final ultimatum: Choose him or the Gorgas. "Try to get me around your family, just try it," Joe snapped. "I'll leave you as well -- I swear to you on my kids."

VIDEO: Melissa Gorga tells Us about her family's feud

Later, Teresa recounted the pool party events to Jacqueline Laurita, who was left puzzled when Teresa said her brother didn't reach out to her after their spat, which turned out to be a lie. "Because of all these layers of truth and lies that Teresa puts out there, I don't know what's real anymore," Laurita said.

Caroline Manzo -- who came under fire for reprimanding Gia Giudice, 10, at the Laurita family's field day -- saw straight through Teresa's two-faced behavior.

VIDEO: Joe Gorga says his marriage to Melissa is stronger than ever

"Teresa always has to blame somebody for something: It doesn't matter if it's a lie or if it hurts other people. As long as she looks like the victim and people can feel sorry for her, it works for Teresa," Manzo said.

The final straw for Manzo was when Giudice slammed her for trying to unintentionally mother Gia.

Sniped Manzo: "Teresa sent Gia a message: No matter how badly you behave, if you feel hurt they're wrong. That's not how the world works."

This article originally appeared on Real Housewives: Joe Giudice Threatens to Leave Wife Teresa