He nods; his relief allows a tiny smile to make its way to his face.

Reaching out to take her hand, he says, "Thanks aren't necessary, but still... you're welcome, Allison."

He has been helpful. It's a combination of following her cues and attempting to perform the role of "good boyfriend," one that wouldn't come naturally if he didn't put some thought into it, into doing it intentionally. It would be easy to bury himself in his new job, never leave the Tower. But the thought of her pulls him out of that a little, enough to divert some of his attention.