What was Palm Beach socialite linked to Donald Trump Jr. doing sitting behind him and fiancée at RNC?

She’s the lady in red!

Page Six has learned that socialite Bettina Anderson was sitting directly behind Donald Trump Jr. and his fiancée Kimberly Guilfoyle at the recent Republican National Convention.

The Daily Mail reported last week that Don Jr. was seen looking cozy with Anderson — and even “locking lips” — over brunch recently at Honor Bar in Palm Beach, and that it’s the “talk of the town.”

The tabloid published further pics of Anderson and Don Jr. attending the same party in Jupiter, Fla., last month, which was allegedly not attended by Guilfoyle.

Palm Beach socialite Bettina Anderson was seen seated behind Donald Trump Jr. and his fiancée, Kimberly Guilfoyle at the Republican National Convention. AFP via Getty Images Anderson was seen at the GOP convention behind Don Jr., with Vanessa Trump. Getty Images The socialite has not been previously known as a big GOP donor. REUTERS A GOP insider told us that the seat where Anderson was spotted was “open” and “not an assigned seat.” AFP via Getty Images Kimberly Guilfoyle and Don Trump Jr. are still going strong, sources insist. Pacific Press/LightRocket via Ge

Anderson, 37, can also be seen in photos, Page Six has learned, sitting behind Trump and Guilfoyle at the convention in Milwaukee, Wis., in mid-July.

The fashionable socialite attended the Wednesday night of the GOP event, and can be seen in pics applauding in a glamorous red outfit.

She was also photographed chatting with Don Jr.’s ex, Vanessa Trump, 46, at the event, and we hear the two are close friends. Sources said she attended with Vanessa.

Rumors have been swirling in Palm Beach.

In some shots, the duo were seated next to each other, and are also nearby the rest of the Trump family.

Anderson also can be seen in background of an image posted by Don Jr. on Instagram of himself and Hulk Hogan at the convention.

A GOP insider told us that the seat where Anderson was spotted was “open” and “not an assigned seat.”

Anderson’s Instagram bio says, “I’m just your typical stay at home mom… only I don’t do household chores…or have a husband…or have kids.” iInstagram/Bettina Anderson

Back in Palm Beach, depending on who you talk to, Don Jr. and his fiancée of four years Kimberly Guilfoyle are on the rocks — or going stronger than ever — at the same time the couple is headed to appear Friday at a Texas conservative youth conference.

Trump allies say the brunch photos with Anderson were overblown, and just part of a campaign to slime Don Jr., 46.

Both sides also point out that Anderson is a close friend of Don Jr.’s ex, Vanessa.

A series of Trump insiders insisted to Page Six on Thursday that all is well between Trump and Guilfoyle. Getty Images

“Don and Kimberly haven’t been getting along over the past year,” a source tells Page Six. “They get argumentative at Mar-a-Lago in front of people. Nothing crazy, but you know when a couple is fighting. They bicker in public.” 

But a series of Trump insiders insisted to Page Six on Thursday that all is well between Trump and Guilfoyle.

“They are 100 percent together. They love each other,” said a source. Another friend of the Trump family also tells us the pair are “as close as ever.”

Instagram A source tells us they have seen the pair “bickering.” GC Images

We hear the couple is still living together, will continue to campaign together and will also head on a trip to Europe.

After the Daily Mail’s report, Guilfoyle posted pics showing the couple at an event called Patriot’s Day Freedom Fest where she was planting a kiss on his cheek.

Anderson, for her part, posted an image to her Instagram feed that said, “Gossip is the devil’s telephone. Best to just hang up. -Moira Rose,” (cheekily referencing an over-the-top character from the show, “Schitt’s Creek”).

She posed in front of a sign that said, “Private,” for good measure.

The Daily Mail reported that Don Jr. was seen looking cozy with Palm Beach socialite Bettina Anderson. iInstagram/Bettina Anderson A spy told the Daily Mail that Anderson and Trump Jr were kissing over brunch.

She later posted a clip from “Meet Joe Black” in which Anthony Hopkins opines, “Love is passion. Obsession . . . Find someone you can love like crazy.”

The socialite has also previously posted the a moody black-and-white shot with the caption, “She didn’t fear the flame, she became the fire.”

Instagram The couple have been together six years and frequently campaign as a pair. AFP via Getty Images Another source insists that all is well between Guilfoyle and Don Jr. Getty Images Guilfoyle was reportedly “blindsided” by the report Don Jr. was hanging with Anderson. AFP via Getty Images

Anderson is in no way a MAGA mega donor. Her one GOP donation seemed to be in 2022, giving $2,800 to Florida Republican Maria Salazar.

Guilfoyle was reportedly “blindsided” by the news Don Jr. was hanging with Anderson.

Anderson — whose father was banker Harry Loy Anderson Jr., and whose mother, Inger, was a favorite of famed photographer Slim Aarons — has started posting pro-Donald Trump content on her Instagram feed over the past month, according to a source. 

Anderson’s father was banker Harry Loy Anderson Jr. Instagram

A source tells us of Guilfoyle’s relationship with the Trumps, “The family doesn’t like her.” 

But another insists that isn’t true. “I’ve heard the president talk about Kim in private many times, and it has never been anything but positive,” they told us. “All of this seems overblown.”

Back in December 2022, Page Six had heard the same rumors, that, “The vibe is that the family doesn’t like Kim. She is trying too hard to be in the family.”

Kimberly Guilfoyle was previously married to California Gov. Gavin Newsom. Getty Images The couple is meant to speak at an event this weekend in Texas. AFP via Getty Images

Eric Trump, however, told us at the time when we reached out for comment, “I completely disagree with the narrative and happen to think the world of Kimberly.”

The pair began dating in 2018 and got engaged in 2020. Guilfoyle was previously married to California pol Gavin Newsome, and design exec Eric Villency.

This week, the Palm Beach Daily News (locally nicknamed, “the Shiny Sheet”) wrote in their print edition that their spies also spotted Anderson and Trump Jr., (though the online version leaves it as a blind item).

Instagram

“The pair recently put on a poolside show of PDA at a local club that convinced all watchers that A) Kimberly is history; and B) somebody is getting a no-PDA letter from the club,” read the article.

A local source tells us that may have been referring to the Beach Club or the Breakers, since other clubs with poolside dining are still closed for the season. (Honor Bar does not have a pool.)

Reps did not respond to requests for comment.