Thor isn't the only one swearing. The paper that Zuko had gotten... it had contained one word Scar. Because he really needs reminding about how he earned his scar.

Sighing, he sees Thor and sits down next to the large man - he reminds him of Iroh in some ways. He rubs the scarred eye, feeling the grit and pain it almost always radiates after too long a day. He should have gone home and put a cool washcloth on it, but instead, he's out here, sitting at a bonfire, hoping that no one else learns about his worst day.