Summary and Reviews of The Ten Year Affair by Erin Somers

The Ten Year Affair by Erin Somers

The Ten Year Affair

A Novel

by Erin Somers
  • BookBrowse Review:
  • Critics' Consensus (16):
  • First Published:
  • Oct 21, 2025, 304 pages
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About This Book

Book Summary

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?

Please be aware that this discussion guide will contain spoilers!
  1. Cora's romantic expectations of her affair with Sam—affected, surely, by the fantastical love stories we all know well—more than fall flat. As you read, did you find yourself longing for the same narrative satisfaction that Cora desires? How did the frustration of life's awkward and mundane realities impact your reading experience?
  2. Most of the characters we meet in this nameless mountain town are New York City transplants who, despite their undeniable similarities, seem intent on distinguishing themselves from one another. How does the dissonance between individuality and the quest for community reveal itself in the book?
  3. The all-consuming nature of a dearly coveted fantasy raises questions about where the line between ...
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Reviews

BookBrowse Review

BookBrowse

In an unnamed town in the Hudson Valley, thirty-year-old Cora is living two lives. In one life—reality—she's a mother to two young children and a content manager at a digital marketing company. While on maternity leave, she befriends Sam, the sole father in her local baby group. Cora's other life is her fantasy life, in which she and Sam do decide to have an affair. This other "timeline" runs parallel to Cora's real life, but The Ten Year Affair is not a sci-fi book about multiverses. It's simply that Cora's mind follows the fantasy through time at the same pace at which she lives through reality; her fantasy world reflects what she wants, what she's unsatisfied about in her real life, what she wishes to escape. The four central characters are all rather depressing figures, but the book doesn't sink into real bleakness or despair; at most it's an abstract, light malaise...continued

Full Review Members Only (953 words)

(Reviewed by Chloe Pfeiffer).

Media Reviews

Defector
One of the best marriage novels of the decade...Not only is the novel keenly observed and brisk in its pacing, it's consistently and outrageously hilarious.

Elle
The funniest book about infidelity you'll read all year...No one evokes the absurdity of everyday life like Somers...It's easy to imagine her wry, sharp, and deeply humane take becoming a classic in due time.

Esquire
Grabbed me by the neck on the very first page and didn't let go. It's also the funniest novel I've read in years...The novel's will-they-or-won't-they-for-real tension generates a surprising amount of suspense, combining a searing adultery drama with a satirical thriller about millennial boredom, privilege, and disillusionment.

New York Magazine
Propulsive and witty, but also sexy, deep, and sad.

The Millions
My favorite book of the year came out this autumn—Erin Somers's The Ten Year Affair—and I wouldn't be surprised if your own favorite read of 2025 awaits you on this list as well.

The New Yorker
Intoxicating.

The Wall Street Journal
Erin Somers depicts current cultural attitudes toward cheating with wit and acumen...[she] is a wonderfully wry chronicler of millennial folkways...The Ten Year Affair handles twists with unfailing intelligence, capturing the sincere but confusingly improvised mores of marriage today.

Chicago Tribune
This is the kind of book that comes out when a sharp observer of human nature puts her mind to questioning what sorts of structures truly undergird the lives we choose to live ... By the end of The Ten Year Affair, we have a rich exploration of what a decent life might be.

New York Times Book Review
Somers's crisp writing makes for a humane, frequently funny and very readable novel that captures something not just about how we live now, but about choices, compromises, sacrifice, being a parent, getting older.

New York Times
Two young parents meet-cute at a Hudson Valley baby group. Unfortunately, they're both married to other people. What comes next is not in fact a 10-year affair, but something trickier — a dual story line in which Somers explores ideas of monogamy, motherhood and modern living in the vein of Miranda July's All Fours or Julia May Jonas's Vladimir.

People
There's nothing particularly wrong with Cora's marriage to Eliot, but when she meets a sexy dad named Sam at a baby group in their Hudson Valley town, infidelity suddenly seems tempting. Will they or won't they? Somers's engaging novel lets readers have it both ways.

The Skimm
Expect a deft exploration of suburban malaise, the pressures of marriage and motherhood, and the blurry line between fantasy and reality in what's been called 'the funniest book about infidelity you'll read all year.'

Booklist
Funny, sexy, depressing, and realistic...Somers' observational style and deadpan comedy make Cora's mess both relatable and unenviable as she navigates the subtle madness of marital commitment, the alienation of motherhood, and the absurdity of life in general.

Kirkus Reviews
Somers' approach to the affair is twice-refreshing—her masterful weaving of the imaginary with the real manages to juggle the banality of fantasy with scenes that are sexy or subversive...Somers' cool, intricate ode to millennial malaise satirizes the roles her generation tried—and failed—to outgrow.

Publishers Weekly (starred review)
Somers offers a wry and ingenious tale of marital infidelity...A sardonic view into the pressures of marriage and motherhood and the ambient temptation of adultery...Readers will find this hard to put down.

Author Blurb Brandon Taylor, author of The Late Americans and Filthy Animals
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.

Author Blurb Tony Tulathimutte, author of Rejection
The Ten Year Affairisn'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.

Reader Reviews

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Beyond the Book



Redefining Adultery: Contemporary Novels of Marriages and Affairs

Adultery has always been a compelling subject in literature: classics like Madame Bovary, Anna Karenina, and Lady Chatterley's Lover explore the psyches of women who want more than their marriage provides. Erin Somers, author of The Ten Year Affair, takes as her inspiration classic stories from the postwar era: novels of middle-class, suburban dissatisfaction, in which husbands drank and despaired and cheated on their wives.

Since the days of Cheever and Updike, novelists like Somers have continued exploring and expanding the definitions of marriage and infidelity. Many of these novels portray adultery in new ways, not always driven by desperation or doomed to despair.

Book jackets of Conversations with Friends, Commonwealth, An American Marriage, and Luster
The Beginning of Spring by Penelope Fitzgerald

A ...

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