"I don't doubt that you're good people. But you're also people who stick your nose into Venatori business, and that's all a bit prickly for my taste. And the Gallows—" he blows out his cheeks, and gives her a sidelong look. It's not exactly the world's most pleasant place to live, is it?

Which really makes the point he's boiling down to—

"I get along with Seleny. We're old friends. And that two bit thief has got between me and it unless I'm keen to, whack,"—a hacking gesture at his wrist—"Part with something else. It's reasonable to be, mm, irritated with her."