Beauty in the Broken

Marriage is the sweetest revenge, but if she thinks I only want her for her money, she's sadly mistaken.
A FORCED MARRIAGE DARK ROMANCE
Six years ago, Harold Dalton framed me for theft and sent me to jail to steal my diamond discovery. He gave his daughter to Jack Clarke in exchange for the excavation rights. Today, I’m walking free, and I’m coming for him with a vengeance. Six years of cruelty make beasts out of men. I’m going to take back what he stole from me, and more. I’m not interested in his properties or shares. I don’t want his small change. I want his biggest asset. Beautiful, mentally unstable, Angelina Dalton-Clarke. Worth billions, she’s the wealthiest widow in the country, and also the craziest. Her self-harming tendencies had Jack declare her incompetent before he put a gun to his head and blew out his brains. Lina isn’t allowed to touch a cent of her riches. Her father manages her finances. He has all the signing power. As her husband, that chore will fall to me. 
But if she thinks I only want her for her money, she’s sadly mistaken.
Note: This is a standalone novel with no cliffhanger.