Simon & Schuster announces that a new book titled “Unreliable Boyfriend” will be published on October 13. The book is written by a former deputy prime minister. The announcement comes after former U.S. President Donald Trump publicly referred to her as “toxic,” a remark that has prompted significant media attention and is referenced in the book’s framing. According to the publisher’s notice, the book is forthcoming and will be released later this year. The available reporting focuses on the publication date and the author’s political background, rather than providing additional details about the book’s contents. The Independent’s coverage highlights the connection between Trump’s comments and the author’s decision to write a book, but does not include specific excerpts or claims beyond the publication announcement. No other sources with differing details are provided here, so the consolidated account is limited to the publisher’s announcement, the author’s identity as a former deputy prime minister, and the stated publication timing.