At this point, it just seems rude to refuse. Like he's taking care to be a dick, when she's really obviously trying to reach out here. He can't help but shoot a slightly frantic look at the door, begging someone to materialize and divert the flow of the conversation, but no one shows.

He's got very little choice, unless he wants to be an asshole. Again.

"...all right, uh. Yeah." It sounds more than a little bit strained, but it's an agreement nonetheless. "What've...what kinda stuff they got in here?"