Bought By The Billionaire by Lily Cole

Victor Serepova had everything a man could want, except one thing.
A woman to share it with.
Jealous of the relationship his brother Nikolai had found with his Gabby, he decided to succumb to pressure and agree to an arranged marriage his father had brokered. They meet and there are no sparks whatsoever, but Victor resigns himself to the bargain.
Then he meets, Grace.
Grace Clarington needs rescued more than anyone Victor has ever met. Left alone with all of her father’s debts after his untimely demise, she’s desperate. Victor swoops in and agrees to pay off every debt she owes, including the six-million-dollar foreclosure on her family home. All he asks is for in return is one small thing.
He wants Grace.