EXCLUSIVE: Vicki Gunvalson Apologizes to Co-Star Shannon Beador for Causing Stress, Weight Gain: 'I'm Sorry'

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Vicki Gunvalson is ready to apologize.

On the new season of The Real Housewives of Orange County, Shannon Beador partially blames Vicki for her recent 40-pound weight gain, citing Vicki’s alleged claims that Shannon’s husband, David, has abused her in the past. Shannon has denied any abuse by her husband.

“That stress caused me to eat more, caused me to drink more,” Shannon shared on the season 12 premiere. “That's a huge part of why I gained my weight.”

WATCH: Vicki Gunvalson Reveals She Was Hospitalized Filming RHOC Season 12

“I'm sorry,” Vicki tells ET. “You know, I'm sorry that you feel that way and I don't want to cause her any stress … If I'm responsible for it, I'm really, really sorry. I don't want anything bad for Shannon and David. I actually want them to have a happy, healthy marriage. I told her that from the very beginning when she confided in me on their situation.”

Shannon and David’s marriage publicly survived David having an affair in 2015, when Shannon and Vicki were still close friends. Going into season 12, Vicki and Shannon were not speaking at all.

WATCH: Why Shannon Beador Calls Ending Friendship With Vicki Gunvalson a ‘Really Good Decision’

“I said, ‘Make your marriage work,’” Vicki recalls. “So I'm sorry. If I'm to blame for it, I'm sorry.”

The Real Housewives of Orange County
airs Mondays at 9 p.m. ET on Bravo. Shannon previously opened up to ET about struggling with her weight and her plan to drop the pounds. Check out the video below for more.