A Chance in a Million by Emily E K Murdoch

Thomas Chance, newly minted Duke of Cothrom, isn’t exactly brilliant at spotting chances in a million. For example, he’s gambled away the family fortune.
It’s hardly endeared him to his rule-following father, William, and now Thomas has to gain back the family wealth, earn back his father’s trust, and absolutely not fall in love with the woman whose fortune he’s trying to marry.
Easier said than done.
Fortunately perhaps, Miss Victoria Ainsworth has her wits about her and sees straight through the nobleman with rakish good looks and a devilish reputation. Victoria swiftly sees through Thomas’s ridiculous charade of affection—the man just wants her dowry!
Well. Let him have it. And her.
A marriage of convenience is supposed to be convenient, but there’s nothing more inconvenient for Thomas than the burgeoning emotions he can’t control, or the gossip starting to flicker through Society.
Worse still, Victoria’s con may be fooling more than just Thomas. Is it possible that instead of fooling him…she’s fooling herself?