An UGLY cheating scandal lurks behind the arrest of “Real Housewives of Orange County” star Tamra Barney’s son! Ryan Vieth, 29, was busted on June 28 for allegedly hitting his live-in fiancée, Sarah Rodriquez, at their California home.
According to the Orange County Sheriff’s Department, a drunken Vieth pushed Sarah and broke her finger.
But The National ENQUIRER has learned that just days earlier, Vieth was told Sarah cheated on him with another man!
Tamra even hinted at the scandal when she told a reporter: “The reason they got into a fight wasn’t [Vieth’s] fault.”
An insider said: “Tamra was alluding to Sarah’s affair. She cheated on Ryan with an ex-cop, and even left her engagement ring and cellphone at his house!”
According to sources, pals told Vieth that Sarah hooked up with the man in a bar and went home with him.
Sarah claimed she’d lost her ring and cellphone, but Vieth grew suspicious, sources said.
He eventually confronted Sarah, who admitted meeting the man, and Vieth flipped out, sources said.
Vieth, who has a 5-month-old daughter with Sarah, has not been charged in the incident.
But the source said: “I’m sure we haven’t heard the last of the Ryan-Sarah relationship drama.”