Summer's End book by Danielle Steel

Deanna believed she had everything she'd ever wanted. Diamonds, a beautiful home, a handsome, successful husband who adored her. But Marc-Edouard led a jet-set life as an international lawyer and for three months - summer - Deanna would be alone. Until Ben found her. And together they found happiness on sun-drenched beaches. But they knew their dream had to end. They also knew that they couldn't live without each other. But Deanna and Ben hadn't foreseen the devastating changes that would happen to them by the time they faced...summer's end. Published By Sphere on 1980-01-01