As serious as he'd been just a moment ago, when Daphne giggled, Draco couldn't help but break into a smirk. He knew she was serious, and he knew that he would never forgive himself. He gave a little nod, watching her giggle and fight back her laughs.
"I know. It's not really like you." He paused. "Well, it is, isn't it? But I know what you mean exactly. I'll do my best not to. I would hate to make a promise and accidentally break it, but I can promise that I will try. I will do everything in my power to keep from hurting her again."