Healing Her Heart by Laura Scott

Dr. Gabe Allen has a rule about dating colleagues but when he meets ER nurse Larissa Brockman he's tempted to break his vow. Larissa's faith draws him back to the church he'd left behind, but when their lives are on the line Gabe discovers that Larissa is the one who needs to learn about the true meaning of forgiveness. And only Gabe can help heal her heart.