'Real' Mess! David Beador’s Kids Side With 'RHOC' Mom Shannon In Nasty Divorce

Shannon Beador is battling it out for custody of her three daughters with estranged soon-to-be ex-husband David Beador, and RadarOnline.com has exclusively learned that the teens are siding with their Real Housewives of Orange County mom!

“David’s relationship with the girls is suffering greatly from the split,” a source close to the 54-year-old RHOC star said, adding that Sophie, 16, and 13-year-old twins Stella and Adaline “witnessed first-hand the way that he treated their mom and vowed to never let a man treat them the same way!”

“The girls know that David is going to have to pay for what he did and how he acted during the marriage," continued the source. "In the meantime, they are continuing to do everything to be there for their mother so that she comes back fiercer than ever before!”

As RadarOnline.com reported, Shannon decided to leave David more than two years after he admitted to having an eight-month affair with a married family friend, Nicole McMackin, in 2015.

Though the teens are supporting their mother, the source insisted Shannon "has done her best to not sway their opinion of their father."

However, Shanon's "crying breakdowns at home that only they could see was heartbreaking” and likely changed their view of David, the insider told RadarOnline.com.

“On top of that, the girls have not had the same kind of relationship with their dad as they did with their mom because he was working all the time while they were growing up and rarely at home.”

In addition to full parental custody, Shannon is also requesting a whopping $25,000 to cover the cost of her attorney fees. In court documents filed on Dec. 4, Shannon claimed that David earned “more than five times” what she earned as a housewife.

“Shannon decided at their last week’s custody hearing that David should pay for all three of their daughter’s college tuition, in full. Basically, she is done with letting him walk all over her,” a source previously revealed.