Her Best Friend, the Duke by Laura Martin

An excellent student…in the art of flirtation!

Caroline Yaxley has always been in love with her best friend, James Dunstable, Duke of Heydon. After years of waiting for him, she’s finally admitted defeat and decided to find a husband. James suggests she practice her nonexistent flirtation skills on him, which seems like a good idea — until she must pull away to avoid a shattered heart. Their pretend attraction has begun to feel alarmingly real!