Love, Money, and Lies by Olivia Saxton

Bruce Styles has a thriving career as a field agent in the FBI, a great family and group of friends, and an ever-growing list of women at his beck and call. His life is perfect — until he sets his sights on Margo St. John.
After Bruce stiffed Margo with an exuberate dinner bill last year then ghosted her best friend, she wanted nothing to do with the playboy.
Thinking if she gives him what he wants he’ll go away, Margo agrees to go on a date with him. After dinner – and, she assumes, a one-night stand — Margo resumes her life. However, Bruce has other ideas. Margo has a strange effect on him, and he can’t let it – or her — go.
When she disappears after Christmas Day, Bruce exploits every resource to locate her.
What he finds, however, is more than he bargained for.