Shannon Beador, star of Bravo's reality series "The Real Housewives of Orange County," dropped opened up about her husband's affair on the season 10 premiere of the show last month. But now, in a dramatic twist, Beador revealed that her "RHOC" co-stars knew about her husband's infidelity before she did, E! News reported.

The reality star appeared on Bravo's late night talk show "Watch What Happens Live" with "Real Housewives of New York City" star Dorinda Medley and host Andy Cohen (also executive producer of the "Real Housewives" franchise). Cohen played a clip from a previous "WWHL" episode with Beador's fellow housewife, Tamra Judge, where she confirmed that she knew Beador's husband David was cheating. Beador said this wasn't surprising to her.

"I mean, they all knew before I did," Beador said.

"No one said anything?," Medley asked. "That's not cool."

Beador explained that her cast mates found out shortly before she did. Beador and her husband are working on their marriage and she's been open about the experience on her blog. She explained why she decided to let the show air the couple's marital problems.

"After much counseling and discussions with our children, we thought that we would tell our story with the hope that other couples who have faced similar heartbreak can repair and restore their marriage like David and I are doing," Beador wrote in her Bravo TV blog post.

She also said that she's been working on moving forward and is trying not to let her husband's affair affect her anymore.

"The thing is if I were to think about the affair when we first started filming I would be upset for a while," she told People. "Now it's just 'okay, yeah' and you move on."

See the clip from "Watch What Happens Live" below.