[Arthur turns around and watches her reaction, his hands in his pockets.] Actually, I wasn't. Which is why? [Now his voice sounds irritable:] I didn't offer before.

[Well, that's an interesting reveal. He doesn't let his expression change beyond a very slight raise of his eyebrows and just files that information away for later.]

I'm not the one getting upset here. [He sighs a little in frustration and walks after her, keeping his distance.] I can't share this information with people I don't trust. I don't care who it is.

I was trying to help. That's it. [He takes on a less terse voice now.] I'm sorry. I shouldn't have told you.