Falling Star - Angelfire Trilogy, #1

A man of God, a fallen angel. Two different worlds, one undying love... For the first time in her life, Rori Mason is independent, supporting herself; she has friends who love her, and-most importantly-she respects herself. She's vowed never to allow a man to hurt her again. Nate Jovanovich broke the heart of a younger, less cynical Rori by marrying her rival. 11 years later, Nate has lost his wife, gained a child and, at the end of it all, realizes Rori is still the woman of his heart.