The Smiling Moon — Marsha Manning

Judie had been eighteen, and the world her oyster, when she met Adam Rosking, and he had cruelly broken her heart. But since then she had done her best to put him out of her mind. She had made a new life for herself and was now a successful model living in New York, planning a brilliant marriage to Roger Broome, who could give her everything she wanted and certainly loved her far more than Adam had ever done. At last everything seemed set for Judi's happiness, but still she could never really erase the memory of Adam. Judi knew he had no part in her life now, but yet it looked as though he might well be going to ruin her future as well as her past.