The Mistress He Regrets Losing

For three years, Sienna loved a man who would never choose her. Alessandro Castellano kept her tucked away in his penthouse like a secret he was ashamed of—expensive gifts, whispered promises, and late-night confessions that felt real until morning came and he went back to his fiancée. Sienna told herself it was enough. That what they had was love, even if it lived in the shadows. She was wrong. The night she overheard him confirming wedding details with Vanessa, laughing about honeymoon plans while Sienna waited for him in silk lingerie he'd bought her, something inside her finally broke. Not dramatically. Not with screaming or thrown objects. Just quietly, like a door closing on a room she'd never enter again. When Alessandro walked in and saw her packed bags, he didn't believe she'd actually leave. "You'll be back," he said, so certain of his hold on her. "You always come back." But Sienna didn't come back. Six months later, she's not the same woman who cried in his elevator. She's built a life without him—a real career, real friends, therapy sessions that taught her she deserved more than crumbs from a man's table. She's even dating Dante Moretti, the charming businessman who looks at her like she hung the moon and doesn't hide her from the world. There's just one problem. Dante is Alessandro's biggest rival, and he knows exactly who Sienna used to be. Alessandro's perfect life, meanwhile, is crumbling. His marriage to Vanessa is a cold business transaction that leaves him hollow. Every woman he looks at reminds him of Sienna. Every night feels empty. He thought he could have it all—the socialite wife his family demanded and the woman who actually made him feel alive on the side. Turns out, you can't have it both ways. When he sees Sienna again at a gallery opening, transformed and glowing on another man's arm, something primal awakens in him. She's not his secret anymore. She's not his at all. And for the first time in his privileged life, Alessandro understands what it means to lose something irreplaceable. He'll do anything to win her back. Burn down his marriage. Destroy his reputation. Fight his own family. Prove he's not the same coward who let her go. But Sienna's not the desperate girl who waited by the phone anymore. She's found her power, her voice, her spine. And watching Alessandro grovel? There's a dark satisfaction in that she probably shouldn't enjoy as much as she does. The thing is, hearts don't follow logic. Chemistry doesn't care about self-respect. And when Alessandro looks at her with those desperate, hungry eyes and says, "I was a fool, and I'll spend the rest of my life making it up to you"—part of her wants to believe him. Part of her still loves him. But love isn't always enough, is it? Not when trust is shattered. Not when Dante's offering her stability and devotion without games. Not when Alessandro's vengeful soon-to-be-ex-wife is determined to destroy anyone he cares about. Sienna has to choose: the dangerous, intoxicating man who broke her heart but might have actually changed, or the safer path with a man who's never made her cry. Except Dante has secrets too. And Sienna's about to learn that sometimes the person who seems perfect is just better at hiding their flaws. In a world of billion-dollar business deals, family expectations, and old grudges, Sienna's caught in the middle of a war she never asked to fight. Both men claim they love her. Both men want to possess her. But this time, Sienna's not anyone's prize to win. This time, she gets to decide her own worth. And whoever ends up with her heart will have to earn every single piece of it—because she's done giving herself away to men who don't understand what they have until it's gone.