South Carolina first lady Jenny Sanford's memoir will be released Feb. 5, months before the initial May publication date announced last fall.
The 240-page memoir, entitled "Staying True," will "recall her shock and anguish upon discovering that her husband was having an affair with a woman in Argentina, and the further pain when she learned - just a day ahead of most Americans - that he had not ended the affair when she believed he had," according to the book's publisher, Ballantine Books, a division of Random House.
"She reveals the source of her determination to be honest and forthright instead of the victim in the tabloid passion play that gripped the nation in June 2009," reads promotional material from the book's publisher.
While Mark and Jenny Sanford are due in divorce court next month, the book's release has not been timed to coincide with the proceeding, said Theresa Zoro, Jenny Sanford's publicist.
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"It was done and we wanted to get it out there," Zoro said.
In June, Gov. Mark Sanford admitted to a yearlong extramarital affair after returning from a secret trip to Argentina to visit his lover. His staff told the public he was hiking the Appalachian Trail.
Women nationwide lauded the first lady for refusing to stand by her philandering husband as other political wives have done.
Instead, Jenny Sanford, a Georgetown-educated former Wall Street investment banker, left the Governor's Mansion and moved to Sullivan's Island with the couple's four sons.
Last month, after several failed attempts at reconciliation, she filed for divorce.