Stephanie Winston Wolkoff, who wrote the controversial tell-all memoir Melania & Me, claimed the couple have “banter” together and Ms Trump will not leave her husband. The First Lady and President Trump are due to leave the White House in January 2021.
Ms Wolkoff, who is Ms Trump’s former senior advisor, speculated about Ms Trump’s plans once her husband leaves office.
Speaking to the Evening Standard, she said: “She envisions herself in the south of France on a big yacht.”
However, Ms Wolkoff believes Ms Trump’s post-office projects do include her husband of 15 years, contrary to claims stating she plans to separate from him.
About the Trumps’ relationship, Ms Wolkoff added: “In privacy and around the dining table they have a banter.”
The First Lady reportedly plans to write a memoir about her experience in the White House with Ms Wolkoff warning she will release “mind-blowing” tapes of her and Ms Trump’s conversations if the book is not factual.
Ms Wolkoff said: “I am curious to see if she’s truthful or not because if I have to come out and protect myself I will.”
Ms Trump’s reported book plans emerged last week, when an insider said the First Lady was in discussions.
The anonymous source told Page Six: “Melania is in meetings to write her White House memoir.
“And it would be her money — a chance for her to earn on her own.”
They added: “I’m told her husband is encouraging her. She’s not done, or going as quietly as you might expect.”
One analyst, Arwa Mahdawi, has described Ms Trump as “every bit as conniving as her husband”.
Writing in The Guardian, she added: “Extreme pettiness is not a good trait in a human being.
“However, it can make for excellent content in a memoir.
“I have high hopes that Melania will fully embrace her dark side after leaving the White House and take down the Trump family in a scandalous tell-all.”
The Page Six source claimed Donald Trump has been “encouraging” his wife to go ahead with the plans.
The outgoing President could also write his own memoir after his time at the White House.
But according to the New York Times, potential publishers are still debating whether to offer Mr Trump a deal.
Publishers’ concerns include publishing staff’s opinion on the project, the report has claimed.
They are also reportedly looking for ways to verify the information in the book.
However, Mr Trump has formerly worked with publishing firms, including Random House which released his bestselling ‘Trump: The Art of the Deal’.