Last Straw! 'Vanderpump Rules' Cast Shuns James After He Humiliates Brittany

Vanderpump Rules upcoming Season 7 may very well be the last for boozy bad-boy James Kennedy!

RadarOnline.com has exclusively learned that the 26-year-old "humiliated" his costar Brittany Cartwright, 29, at SUR recently over her fiancé Jax Taylor's affair with Faith Stowers, 29.

"James basically was making fun of the fact that Jax hooked up with Faith, and how Brittany still got back with him. He was DJ'ing at SUR and rapped a song about Jax and Faith when Brittany was like five feet away," a source close to the cast told RadarOnline.com.

"It was bad — like, really bad," continued the source. "Brittany was balling her eyes out over it and had to be escorted out because she almost passed out from being upset and embarrassed."

Needless to say, 39-year-old Taylor — who has been slamming Kennedy on social media lately — didn't take well to Kennedy's low blow.

"James was taking more of a dig at Jax than Brittany," the source explained, "but the girls are all super angry because they love Brittany and cannot believe that he went there. It is just so f***ed up."

As RadarOnline.com previously reported, both Lala Kent, 28, and Kristen Doute, 35, are also completely over Kennedy's antics!

"At this point, my friendship with James is non-existent," Kent — who is engaged to Randall Emmett, 47 — said in a recently released promo. "When we were at Coachella, James said, 'Come on we all know each other inside and out if you know what I mean.' And I just wanted to vomit."

"Randall was absolutely not okay with it and it was time for me to tell him, 'You know what? You don't even deserve my friendship anymore!'" she added.