The Greek tycoon's blackmailed mistress

Aristandros Xenakis is like a panther poised to pounce. Sleek, dark and utterly powerful, he'll soon taste the sweet victory of vengeance....Ella, 28, desperately wants access to her baby niece, but the child's guardian is 32 year old Aristandros--her ex-fiance! She has no choice but to submit to his demand--she must become his mistress!

Naive and unworldly, Ella is not like the groomed, gold-digging females who have previously warmed Aristandros's bed. Surely it's only a matter of time before he tires of her...?
Aristandros 25 when engaged now 32 yrs old
Ella 21 when engaged now 28 yrs old