Shannon Beador
Shannon Beador, photographed at Shoebox's 29th Birthday Celebration at The Improv in Hollywood on June 10, 2015, recently opened up about her run-in with Nicole McMackin (not pictured), the woman who carried out an affair with her husband David Beador (not pictured). Getty Images

Shannon Beador is speaking out about a recent verbal altercation between her and Nicole McMackin, her husband David Beador's former mistress. The incident occurred during a University of Southern California football game Saturday. The star of Bravo's "The Real Housewives of Orange County" isn't the least bit sorry about what happened, in fact, she blames the entire incident on McMackin.

During an interview with Entertainment Weekly, Shannon, 51, said she was completely taken aback that David's mistress was even at the football game. She was certain, however, that neither McMackin's attendance nor her proximity to them were coincidental, so she decided to take action. Shannon told ET she couldn't simply "roll over," so she confronted her. Shannon told McMackin she had "'a lot of nerve'" showing up to the game before yelling to the entire section that she'd had an affair with David.

"I was shocked to see that she was there, so this time, I'm not going to roll over. I said, 'You have a lot of nerve being here!' I found myself in front of the stands and I yelled, 'This is the woman who had an affair with my husband!'" Shannon shared. "They could buy a seat anywhere."

Eye witnesses told Us Weekly McMackin appeared to be fighting to get the attention of both David and Shannon. The "RHOC" couple ignored her for as long as they could, but David's mistress made it impossible. She eventually bumped into Shannon on the way back to her seat, though witnesses did not say whether the run-in was intentional or not. It was then that she and McMackin exchanged words. David's mistress called Shannon "sick" and "crazy" before the "RHOC" star announced to those sitting in the stands that McMackin had been intimate with her husband.

Shannon and David have been open with fans about his infidelity, sharing the news during the Season 10 premiere of "RHOC." They spent much of the season trying to repair their broken marriage and were eventually successful. Prior to the "RHOC" reunion, Shannon and David sat down with Andy Cohen, host of Bravo's "Watch What Happens Live," to discuss the affair. During the exclusive interview David revealed that he thought he was in love with McMackin. Andy, 47, then asked whether or not he would have been honest about the affair if his wife hadn't found out, which he claimed he would have. Shannon agreed, telling Andy her husband was "ready to leave."

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