Cattleman's Bride-to-Be — Lois Faye Dyer

The last man on earth...was how Nikki Petersen saw the cowboy who'd broken her heart four lonely years ago. Suddenly, Cully Bowdrie was the only man who could help her. But when the guarded man walked into her little sister's hospital room, Nikki saw that he wasn't the same man she once knew and that she wasn't the only one in pain.

As secrets and regrets smoldered between them, they worked to save a little girl's life. During their desperate venture, Nikki and Cully realized a primitive hunger for each other. But would history repeat itself, or had their brush with life and death made them accept a love that had never really died...?