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About The Book

“The best book about adultery since Madame Bovary.” —Tony Tulathimutte, author of Rejection

A hilariously acerbic sliding doors novel about a chance meeting between two young parents, both happily married (just not to each other) that sparks a will-they-won’t-they romance—perfect for fans of Big Swiss and Acts of Service.

When Cora meets Sam at a baby group in their small town, the chemistry between them is undeniable. Both are happily married young parents with two kids, and neither sees themselves as the type to engage in an affair. Yet their connection grows stronger, and as their lives continue to intertwine, the romantic tension between them becomes all-consuming—until their worlds unravel into two parallel timelines. In one, they pursue their feelings. In the other, they resist.

As reality splits, the everyday details of Cora’s life—her depressing marketing job, her daughter’s new fascination with the afterlife, her husband’s obsession with podcasts about the history of rope—gain fresh perspective. The intersecting and diverging timelines blur the boundaries of reality and fantasy, questioning what might have been and what truly matters.

The Ten Year Affair is a witty, emotionally-charged exploration of marriage, family life, and the roads not taken, that ultimately asks: do we really want our fantasies to come true?

About The Author

Nina Subin

Erin Somers is a reporter and news editor at Publishers Lunch. Her first novel, Stay Up with Hugo Best was a Vogue Best Book of the Year in 2019. Her writing has appeared in The New Yorker, The Paris Review, The New York Times Book Review, The New Republic, New York magazine, The Atlantic, Esquire, GQ, Best American Short Stories, and many other publications. She has been the recipient of an Emerging Writer Fellowship from the NYC Center for Fiction, a fellowship from the Millay Colony, and was a 2020 finalist for a National Magazine Award. She lives in New York's Hudson Valley with her family.

Product Details

  • Publisher: Simon & Schuster (October 21, 2025)
  • Length: 304 pages
  • ISBN13: 9781668081440

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Raves and Reviews

"The Ten Year Affair isn't just the best book about adultery since Madame Bovary; it's also a funny and deeply true novel about the role of the imagination in human existence, those banal longterm daydreams that compete with your life while helping you cope with it. Erin Somers's wit is as cool, caustic, and dry as liquid nitrogen, and her dangerous talent is on full display in this excellent book."—Tony Tulathimutte, author of Rejection

"The Ten Year Affair is a hilarious and acutely observed account of early middle life. Somers writes with warmth, wit, and shimmering insight about the failings and strivings of decent people who wake up and find that life isn’t quite working out. No other writer at work today is as alert to the comedy of everyday life and to the extraordinary realms of feeling that lie behind that comedy. I never wanted this novel to end. I loved every moment. Somers has written a classic of our era."—Brandon Taylor, author of The Late Americans and Filthy Animals

"A compulsively readable, surprising, and wholly satisfying story of the way we long, now. Told with inexhaustible wit, Somers's novel is packed full of observations and flights of imagination so perfect in their particulars that their accumulation becomes luminous."—Julia May Jonas, author of Vladimir

"Smart, sharp, and incredibly funny, Erin Somers' The Ten Year Affair explores the slippery complicated space of fidelity, parenthood, and marriage. How do we continue to choose to love the people we have chosen, to not feel trapped inside those choices? Where and what are we reaching for when we reach outside them, and what is it that makes both staying and leaving so thrilling and so terrifying in equal parts? I loved this book for its deftness, humor, and its remarkable acuity."—Lynn Steger Strong, author of Flight

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