            He shook his head as that biting laugh came back. "Doesn’t matter now, does it?" He twisted back towards her. It was a face so startling familiar, but with a coldness she’d never seen before in his handsome features. Even when he’d been grieving, or brimming with rage, she’d never seen Sirius like this. Like all his hurt and disappointment and regret had been carefully inlaid beneath a cool, unbreachable mask. "Do what you want," Sirius said in a low, dangerous tone. "Fuck him. Save him. Give him the magic we shared together. But don’t expect me to sit around while you do it." He strode past her, ignoring her pleas to wait, ignoring her fingers trying to catch hold of his own.