“Curb Your Enthusiasm” star Cheryl Hines has yet to publicly comment on her husband Robert F. Kennedy Jr.’s sexting scandal with a much younger political reporter. But behind the scenes, she’s likely fuming, a source told Page Six on Friday.

The source, who knows the couple, said Hines is no pushover at home and “has a backbone.”

“He was on the road a lot this year, so maybe it was different and the relationship was tested,” the source speculated, referring to RFK’s quixotic presidential campaign that was suspended last month.

“I can’t imagine her tolerating this. She has a backbone. She’s not a little housewife at home. She’s successful financially independent on her own.”

News of the alleged digital-only sexting relationship between the 70-year-old Kennedy and 31-year-old New York Magazine reporter Olivia Nuzzi broke on Thursday, sending shockwaves through the DC circuit and beyond.

Hines and Kennedy, 70, have been married since 2014 and celebrated their 10th anniversary last month.

Nuzzi, who was recently engaged to Politico reporter Ryan Lizza, was suspended by the publication after the alleged affair came to light.

“She had a personal relationship with a former subject relevant to the 2024 campaign while covering the campaign, a violation of the magazine’s standards around conflicts of interest and disclosure,” New York Magazine said in a statement.

Nuzzi wrote about Kennedy for the magazine in the fall of 2023. The unlikely pair were believed to have started sexting around New Year’s Eve, sources told The Post.

Nuzzi admitted in a statement of her own earlier this year that “the nature of some communications between me and a former reporter became personal” — without naming Kennedy. She maintained that the relationship was never physical.

A spokesman for Kennedy, meanwhile, said the failed presidential candidate met Nuzzi only “once in his life for an interview she requested, which resulted in a damning article.”

But sources told The Post on Friday that the two were “not particularly careful” about keeping their tryst a secret.

“There’s a reason New York Mag found out,” the source said.