Her Knightmare by Sam Crescent

If Dwayne Carson comes for you, you’ll wish for death long before he will let you find it. No one can match him. He has more kills than any other Carson, including his father and uncles. He is your worst nightmare—but when an eighteen-year-old girl is abducted, Dwayne agrees to save her for a price.
Charity has never been so afraid in her life. Being taken, threatened, beaten, nearly broken, she doesn’t believe anyone will come for her. But someone does. One man saves her from her captors, and she’ll never forget him. But now she’s back in her old world, expected to carry on as if nothing ever happened.
The only person who makes her feel normal is Dwayne. He’s back in her life now, and she can’t stay away. She should be terrified of him, but he’s the only one that makes her feel safe, the only person in the world she trusts. But a crime lord always has enemies, and his life is a dangerous one. Is there room in it for Charity?

Can these two people find a love that will last forever?