"Oh," Harry said finally, glad that Ron had turned away again. "Well, that's..that's great. Really. I'm happy for you. Thrilled even." He summoned a smile to his face, even as all of Williamson's questions started to make sense. He was trying to find out what Ron liked so he could be a better boyfriend.
He swallowed thickly and wished for a drink. Glad of the distraction Mitchell provided, he nudged Ron not too gently. "Don't stare at him, prat, we don't want him to suspect anything. Think of it like a training exercise in tracking and disguise, okay?" He grinned, hoping that Mitchell would also distract Ron from Williamson, and maybe he'd forget about their date later tonight.