My Husband's Secret Phone and the Woman He Called Every Night - A Marriage of Betrayal, Infidelity and Revenge Romance #974636

He told me he was working late. He was — just not for the company I thought.

Fiona Ainsworth supported James through everything. The relocation from Edinburgh to London. The promotion that meant late nights and early mornings. The weekend travel that became weekly. She supported it all without complaint because that's what you do — that's what twenty-two years of marriage looked like from the inside.

She found the phone inside his gym bag on a Wednesday morning. Not a work handset — a personal one, sleek and locked with a six-digit code she didn't know. One contact saved under a single initial: K.

Fiona doesn't know why she tries their daughter's birthday. The phone opens. What she expects: messages. What she finds: two years of a relationship so intimate it has its own language. Pet names. In-jokes. A conversation about what to name their future dog. A woman named Katherine Moore who believes James is separated and has been for eighteen months.

Katherine has met James's mother. His mother has been lying to Fiona for a year and a half.

But the discovery that levels Fiona entirely is this: the flat James rents for his "London base" — the one she helped him furnish over a weekend in IKEA, the one she thought was a sensible business decision — is Katherine's home.

Fiona assembled the bed frame.
Fiona Ainsworth is forty-six years old, and she's never been angrier or more alive.

For readers who love betrayal stories with slow-burning heroines who take their time — and then take absolutely everything