Who knew the Oppenheim Group’s Newport Beach, California, office patio could double as a fight ring? It nearly did on season 3 of Selling the OC, as Austin Victoria squared up with Sean Palmieri after a rumor circulated within the cast circle that Austin and his wife, Lisa, had made some sort of advance on Sean one night when he came over for dinner.  “Everything was fabricated, everything was a lie that was said,” Austin tells ET, sitting down with his castmates — Kayla Cardona, Ali Harper, Alexandra Rose, Jason Oppenheim and Brandi Marshall — to discuss the just-released episodes. “What truly happened the night that he came over to my house, we were just texting back and forth, my wife and I, we’re gonna have dinner, she was gonna bake some cookies and I just got an Oculus — a VR, I’m a big gamer — so Sean and I are texting back and forth,” Austin recalls. “He asked if he could join us. I said, ‘Sure,’ so he joined us for dinner. My wife …