A Sinful Duke she can’t Refuse by Olivia Bennet

For she had eyes and she chose him…
Isabella Addison, only daughter of the Viscount of Gefferton, is forced to marry a hideous man…or so she thinks. Her view of the world changes entirely the day she meets him for the very first time.
Emanuel Beckett, Duke of Helmsfield, lost himself twenty years ago—the day his parents were killed and his leg was amputated. Enraged by the upcoming marriage his aunt arranged without his consent, he realizes he has no other choice but to comply.
But a smoldering attraction between them burns all initial doubts and a relentless courting begins…
When an unexpected encounter awakens old memories for Emmanuel, he realises Isabella was the one holding the key to his redemption all along. In the blink of an eye, he will be led to the moment he had been waiting for his entire life: finding out what really happened the night his parents died.