[He nods by way of greeting. He'd figured something was not right, at least. Doesn't mean he exactly trusts his neighbor.]

Glad to see you're doing better.

[And he glances towards Kreutzer and her work.]

Fascinating.

[There is so much sarcasm dripping from that remark. So much. It's clear he'd rather Kreutzer not be doing whatever it is she's doing.]