Indebted by Emma Tharp

Donovan Monroe is successful, handsome, and single, and he intends on keeping it that way. There’s only been one woman in his life who wouldn’t give him the time of day—and even now, it still bothers him.
Liza Dooley was the most popular girl in high school. She’s beautiful, with a magnetic personality. Now, fifteen years later, she needs Donovan more than ever.
When Liza’s loan application crosses Donovan’s desk, he sees it as a way to finally prove to Liza what she missed out on all those years ago. And when they come face-to-face, he knows what he’s got to do…make her fall for him. Not because he wants a relationship. No, he wants revenge.
This should be easy, and maybe, he’ll have fun in the process. Getting involved with Liza again brings back all the feelings he had for her in high school, except now, she’s reciprocating them. But he knows what he’s doing is all in good fun… Or is it?