One Special Kiss - Golden Gate Romance Series, #6

Susannah Mercer worked tirelessly for years to reach her ultimate goal - becoming a doctor. Now that she's finally living her dream, all that's missing is romance. When the chief of staff pairs her with grumpy surgeon Greg Haversham for an important hospital event, she gets a bit overzealous with trying to look sophisticated. To Susannah's surprise, the cantankerous doctor offers to help her land a date.
Then to her shock, Greg finds himself drawn to her-but only for an affair. He's sworn off relationships forever. While he isn't looking for something serious, she is. The only option - cut ties with him. That is until an unlikely turn of events changes Greg's heart forever.