The Billionaires Substitute Bride

Blurb: Mia's life turns around when she eavesdrops on a billionaire conversation and dents his car. Allen makes Mia his substitute bride when he finds out his fiance has been cheating on him.  Mia turns from a girl with debts to a billionaire's wife in just a day. After she signs a contract to be the billionaire's wife for a year,  she is determined to stay until the end just because of the payment she will receive. Will she be able to abide by all the rules of the contract? Will she be able to stay with him for a year even though his ex keeps trying to break them apart?