The Major's Faux Fiancee

A friends-to-lovers, military hero, "pretend dating" romance from a New York Times bestselling author:

When Major Bartholomew Blackpool learns the girl-next-door from his childhood will be forced into an unwanted marriage, he returns home to play her pretend beau. The one-time dandy knows Society demands perfection-and he'll ensure his old friend finds just that.
Miss Daphne Vaughan hates that crying off will destroy Major Blackpool's chances of finding a real bride. She plots to make him jilt her first. Who cares if it ruins her? She never wanted a husband anyway. But the major is equally determined that she break the engagement. With both of them on their worst behavior, neither expects their fake betrothal to lead to love...
The fan-favorite Dukes of War series features roguish peers and dashing war heroes who return from battle only to be thrust into the splendor and madness of Regency England.