Lindsay Armstrong 
Constantin Marriage [EPUB ebook] 

Alex Constantin agreed to a marriage of convenience to Tatiana Beaufort because this inexperienced young woman intrigued him. But on their wedding night she asked for a year’s grace before making theirs a "real" marriage-insisting on single beds!A year on, Tattie is both alarmed and tempted when her husband suggests they become lovers at last. But she is just as determined that she will not become his proper wife until Alex says, "I love you."