[Only after he's embarrassed Hermione sufficiently in front of everyone else does he bother flicking a privacy filter on.]

Dorian has... drifted, as of late. Do keep an eye on him should you come. I believe him in better spirits now, but he runs the risk of slipping and falling all over again if left to his own ends for too long.

[And honestly, he can't really think of anyone else he'd trust with that boy's well-being. Funny how they've come to rely on each other when months ago they were fighting like cats and dogs. This Drabwurld had a strange way of pulling people together.]

Think of it this way. If he throws himself off a cliff, I'm the first one to feel the rock at the bottom jutting through his skull. It's unpleasant.