Table For Five by Susan Wiggs

A gifted teacher, Lily Robinson adores her students, but fiercely guards her independent lifestyle. Only her best friend, Crystal, has ever been able to get close.

Sean McGuire is used to living in the shadow of his famous brother, Derek. He's made his own way in life, playing by his own rules. Now an unthinkable tragedy has drawn Lily and Sean into the shattered lives of Crystal and Derek's family.

Sean and Lily are brought together by tragedy, joined in their grief and their mutual love for Crystal and Derek's children. But raising three kids is a monumental job, and Sean realizes he's in over his head. And though Lily has been the unofficial aunt to these children since they were born, planting emotional roots means taking risks and Lily's not sure she can.

But Sean and Lily are about to discover the possibilities that make everything seem worthwhile–a future filled with hope, happiness and the certainty that trusting love is the best choice of all.