Ron/Draco
Ron grinned widely at Malfoy's tone. "Come on. You call me Weasel King, I'll call you Ferret Boy. It'll be our little inside joke." Maybe the joke would wear thin quickly, but right now Ron found it hilarious the way Malfoy had seemed to instantly lose interest in the insult once Ron refused to be insulted by it.
"Yeah, it definitely wants to keep us here. We're trying to think of ways to convince the place that we have no intentions of abandoning it." He didn't mention the idea of oaths to Malfoy; if Harry wanted to clue him in on that idea, Ron would leave it up to him. "Hell, we're talking about bringing students here. The castle out to get the idea that this isn't temporary sooner or later."
He grinned, not offended by the comment because he'd had a similar thought himself. "I know. I'm just full of surprises these days."