EXCLUSIVE: Ex-Mistress of 'RHOC' Star Shannon Beador's Husband Breaks Silence: 'This Has Been an Extremely Try

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After being confronted by Real Housewives of Orange County star Shannon Beador at a University of Southern California football game over the weekend, Nicole McMackin is breaking her silence about her affair with Shannon’s husband David.

"This has been an extremely trying time," Nicole and her husband Reed said exclusively in a joint statement to ET on Monday, the first time the couple has spoken publicly about the affair since it was revealed on RHOC. "We have done our best to work through our issues in private. Nicole understands that she made a terrible mistake and there has been an incredible price paid by both families."

WATCH: 'RHOC' Star Shannon Beador Opens Up About Confronting Her Husband's Former Mistress

Shannon opened up to ET on Monday about the confrontation, which took place Saturday at USC’s home game against the University of Utah at the Los Angeles Memorial Coliseum. Both women’s husbands are USC alum, and through an "unfortunate coincidence," the couples ended up sitting about 15 rows apart.

"I was shocked to see that she was there, so this time, I'm not going to roll over," Shannon told ET, adding that the the McMackins "could have bought tickets anywhere." "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 recalled. She also shared an Instagram pic from the game, writing that "Someone with no moral compass decided to show up again."

WATCH: 'Real Housewives' Star Shannon Beador Reveals Husband David Left Her During His Affair

The McMackins emphasized in their statement to ET that they have moved past the affair as a family.

"We want everyone to understand that we love each other very much, and that I have completely forgiven her," Reed and Nicole’s statement continues.  "We have reached a place where we are moving forward as a family. We believe that our future can be one of happiness, and hope the same for the Beador family. However, it is extremely difficult to move forward with the constant attention drawn to this difficult situation by the Beadors."

WATCH: 'Real Housewives of Orange County' Star Shannon Beador on Fixing Her Marriage: 'We're In Such a Happy Place'

Reed allegedly stepped in during Saturday's altercation between the two women. An eyewitness told ET he confronted the reality star, saying, "Shannon, go sit down. No money to be made here. Please let us be."

"As private citizens, it is difficult to see our pictures all over the internet, and have articles written about us," the McMackins concluded. "This kind of attention has been extremely trying not only to us, but more importantly, our two children. We have done our very best to keep our lives, and those of our children out of the public domain. We never have, nor will we ever seek out public attention about this very painful, private matter, and we are hoping that the Beadors, Bravo, and the other cast members will allow us and our children to live our lives in peace."

WATCH: 'RHOC' Star Shannon Beador Has Run-In With Husband David's Mistress at USC Game