[Oh, so he is coming inside again. She thought that might be it. She shuts the door behind him and shivers a bit. She hadn't felt it while she was bending, but really was cold outside.

Plus. He's evading.]

Right, you think I'm being silly. [That's said with some wry sarcasm.] But I'm not hearing anything that sounds like 'Of course I'll be fine, Katara. You don't need to worry.'