The Rancher Next Door — Susan Mallery

HER DADDY SAID THE DARBYS WERE DIRT....
But to young Katie Fitzgerald, the sun rose and set on rugged Jack Darby. Jack was her childhood hero, her secret teen beau. But he hadn't loved her enough to leave their feuding families behind, and blinding heartbreak had led her into another man's arms -- and 11 years of loneliness.

FRATERNIZING WITH THE FITZGERALDS WAS FORBIDDEN...
When Katie returned to the ranch next door, emotions tore through Jack like a Texas twister. Anguish over her youthful betrayal, tenderness for her shy son -- and a hunger so deep it hollowed him out. But hadn't 11 lonely years taught him he was a fool to love a Fitzgerald?