His Convenient Wife. Diana Hamilton

Cat is furious when her grandfather insists she consider a marriage of convenience to wealthy Italian businessman Aldo Patrucco. But then it's love at first sight for Cat and lust at first sight for Aldo–so the wedding is on!Once in Italy, Cat plans for her new husband to fall in love with her–only it seems he's returned to his mistress! Proudly announcing she's leaving him, Cat discovers that, mistress or not, Aldo certainly has no intention of relinquishing his convenient wife….