My Husband's Vows to My Stepsister

I married into the Vex family to save my mother. Five years later I'm the hostess at my own dinner table. Cassian Vex is building a casino on the Strip, and my stepsister Bianca is at his right hand for all of it — the flights, the meetings, the tabloid covers. I've been telling myself it's business. I've been telling myself a lot of things. Then I find the vows. The ones from our wedding, the ones he never read out loud. Every line of them belongs to Bianca. Her name, scratched out. Mine, written over it in a different pen. So I do the thing no one in this family has ever done. I leave without a word. He follows me to Reno with the vows in his pocket and an explanation I don't want. Because it isn't the vows that broke us. It's that he never once looked down at them. A billionaire marriage-in-crisis romance with a very sharp edge.