"We're just..." Arthur starts to insist, trailing off as he tries to come up with an appropriate way to end that sentence. There's definitely something going on here but he doesn't want to take a chance on being wrong and having to explain away a lot of things he doesn't want to bother with.

"Colleagues," he finally says, not all that convincing. He keeps his gaze trained on Eames. "Maybe he can enlighten me as to why that's relevant."