"Not my prisoner?" Barty repeated the words slowly and then he moved suddenly, his hand snatching Regulus' hair, a strong grip forcing his head back. He resisted the urge to reach for his wand, but his eyes stayed on Regulus and there was force in that too. "You don't even know what it means to be prisoner, darling. I'd never imprison you. I have given you a second chance and you? You want to throw it all away? What's next, it's none of my business where you go? When I've tied my entire existence to yours? When I've given up everything for you?"