He Let Another Woman Touch My Wedding, So I Left

From the back cover

For seven years Mona Callahan has built a life with Emmet James, and when their wedding planning begins, she designs the invitations herself, working through migraines to perfect fifteen versions. Emmet dismisses every one, then brings home an invitation embroidered with roses and pearls, made by Adela Henson, a young woman he calls his student and subordinate. Adela has already chosen the venue and the flowers, and now her design is the one he wants.

Mona finds Adela's key on Emmet's ring and a matching cat charm on his pen, while he once refused her the same blind-box series. When Mona was followed home on a dark rainy night, Emmet hung up and told her not to be dramatic; Adela's post showed them together in a conference room instead. He insists Adela is only a debt he owes her father, and offers separate invitations for each side.

Mona agrees, and the seven years that belonged to them begin counting down. The ring Emmet brings is her style but two sizes too small, and Adela picked it.