She Kissed the Guard, I Reclaimed the Fortune

From the back cover

On the day his company goes public, Liam Anderson gets proof that his fiancée Chloe is cheating: a photo of her kissing Mike, a parking lot security guard, and her post showing Mike caressing her pregnant belly in a maternity ward. He quietly pockets the ring he meant to propose with, cancels the venue, caterers and wedding planner, and orders every bank account and credit card in Chloe's name frozen.

Chloe then walks into his office with Mike and pushes Liam to hire him as Business Development Manager. Liam refuses, and when Chloe threatens to call off the wedding unless he apologizes to Mike, he tells her the wedding is already canceled. She leaves with Mike, certain he will cave, then messages him to buy Mike a sports car as an apology.

Liam recalls the ten years he spent building his empire around her, and how little it now means. At home that night, he finds Chloe in a bathrobe while Mike showers in his bathroom, wearing his pajamas.