Seven Ways Back by Andie Bale

Hunter Montgomery is still haunted by memories of being directly responsible for breaking the heart of the only man she’s ever loved. It is seven years later, and she realizes that all the sacrifices she made then were in vain. Now, she is ready to move back home, lick her wounds some more, and hopefully get her life sorted out.
Zach Cavanaugh never got over the one girl who was able to steal his heart, then promptly break it. The years that passed since then have not lessened the pain. When fate throws Hunter back into his life, he decides that he’ll make the rules now. If he has to break her heart this time around, it’s all par for the course. One thing’s for certain. He’s not ready to let her go.