Scarred Wife by Sam Crescent

Seven years ago, Vanessa Norma was taken and held for ransom. When something went wrong, she nearly died. Although someone saved her, she now has to live with the permanent scar and being known as damaged goods.
Diago is a monster. He is the villain in most stories. He kills without mercy.
The night he saved Vanessa, something happened, something changed. She was the first person to seek comfort in him, and now, he knows she is at risk of being sold to the highest bidder, as her father needs money.
No one will fight him. Everyone is afraid of him. So he takes Vanessa for his own.