Sources close to Meghan Markle are saying that she feels “sick to her stomach” over her half-sister Samantha’s upcoming tell-all memoir. However an insider added that she “won’t act bothered or upset about [it] in public.”

This source told In Touch Weekly that Prince Harry is “totally supporting Meghan and doesn’t believe a word that comes out of Samantha’s mouth.”

Samantha’s 328-page long memoir “The Diary of Princess Pushy’s Sister Part 1” is set to be released on Sunday. Though Samantha, 56, has promised that it will not be a “slamming tell-all story,” Meghan may not be “comfortable” with some of the things she penned.
“I don’t know if she will be comfortable with it. Some things she will and some things she won’t,” Samantha told The Sun. “It’s fair and balanced. Naturally, some things she will like and some things she won’t. Truth is stranger than fiction, and I have predicated myself on the truth.”Samantha later added to Us Weekly that her memoir “has never been designed to attack my sister.”

“It’s relatable,” she explained. “There’s a lot to learn — the good, the bad and the ugly. I’ve been very forthcoming that I was never writing a hardbound tabloid. I said that two years ago, but nobody wanted to believe it.”

The memoir, which is set to be published by Barnes and Noble, has the synopsis: “Amidst a firestorm of fake news and media mayhem, Samantha Markle shares the truth about her life and family against all odds and ultimatums, as a royal fairytale plummets from the tea towels.”

Thomas Markle, the father of Samantha and Meghan, said that he is supportive of his older daughter’s decision to write the book.

“I’m just very pleased that she’s accomplished this book,” Thomas told US Weekly. “Let’s let her talk to you about the book.”

Meghan and Samantha share a father but have different mothers, and the half-sisters have been estranged for many years. Right after Meghan married Harry in 2018, Samantha showed up outside Kensington Palace, trying to give the guards a letter she wanted delivered to her royal half-sister.

“Samantha was with one other gentleman who was pushing her chair for her,“ an onlooker said at the time. “They handed the security guard the letter and left and were there for about two minutes.”