"Jenna, promise me that if by the time we both graduate college and are still single, you'll come back to me?" When you agreed to your best friend Niall's charming request at the age of fifteen, you never expected it to come true. But when you run into a familiar set of lonely blue eyes ten years later, he seems to remember his loyalty to you that time under the bleachers. And there's nothing he wants more than to keep his promise.