Island of the Dawn (1982)

Foolishly she'd never stopped loving him Leon had swept the young and innocent Chloe into marriage, but there was no happy ending for them, for there would always be Marisa. Marisa, obsessive and possessive about her stepbrother, implied a relationship between them that could never be. She claimed a wife was only needed to disguise their sin. So Chloe, disgusted and confused, ran away. But a Greek's pride could not accept a wife's desertion, and he tricked her into returning. She hated and despised him-but could not deny she still wanted him....