She's not going anywhere, and truthfully Eames would probably give in sooner or later if she didn't leave. Arthur coming down kind of crumbles his resolve, looking aside at him and then to Nancy with a scowl.

"I'll do it." He turns to walk through to the kitchen, calling Boxer to come with him. It's basically a 'you deal with this' to Arthur, which might be unfair but also Eames is really fucking pissed off right now.