Yeah, second head about covers it. She wonders if she should go or say something to fill the space in which he has apparently forgotten how to respond. Maybe she's being annoying. There's a very real chance that she is, given the circumstances and her inability to leave him alone. In reality, Claire probably doesn't need to prolong any of their interactions, given how often she's maintained that she doesn't need anyone's help and would be better off doing things on her own, never mind how much she enjoys the company when it's there, but this is good. This focus on someone else, no matter how much he probably doesn't want it.

"I could punch you if you're feeling weird about it," she almost immediately replies, decidedly less awkward than him.