He looks a little bit sheepish once she gets up there - because he certainly didn't mean to give anyone the wrong impression or cause them the trouble of coming up there, although at least, he supposes, the kind of person who drops everything to help someone who might be in trouble probably isn't the kind of person who'd get worked up about it not being necessary.

"No, I'm fine, I just...like a spot with a view." It's functional and strategic, it's aesthetically impressive, and it's not a thing like the tunnels he grew up in. What's not to like?

"Thanks, though. For coming up here...and about the green, I mean. Yours is pretty nice too!"