Runaway by Tiffany Marks
A decade ago, in pursuit of success, Kelly Harrison ran away to the big city. Leaving behind her high school sweetheart, Jake Anderson, who had loved her since they were kids. He never thought he would have a second chance with her. Until for unknown reasons; she comes home to Spring Bluff, Montana. Jake will risk it all for one last shot at winning Kelly back, but can he persuade her to take the same gamble?