Hmm... is he really hurting Smarty or just harassing her? If he’s bloodying her up, I’d have him in the soup pot at my earliest convenience and until then he’d be the one in the kennel, not Smarty. I know, I know... maybe he could still reform but there are plenty of roosters around and most of them at least know how not to treat a lady.
He’s a handsome boy, but again, all my roosters are lookers but one. Two are headed to the stockpot next time I process—one for attacking me and the other for scalping a hen.
Otherwise, if he’s just harassing her, I’d give it a few weeks and see if things settle down.