After Minos' threat, George bitterly laughed at his situation but without despairing.
What gave him confidence in the situation he was in wasn't the two Demigods there to protect him. What gave him confidence was the fact that he hadn't really come to Dry City with nefarious intentions. He'd also been honest about his feelings for Sarah.
When he first came to this place, his goal had been to observe the progress of Minos' children, whom Emperor Stuart had said he would send to the Continental Tournament.
To do that, he would have to get close to Kendrick and Sarah.
Kendrick was more difficult to get close to, as he was always away from Dry City, and even when he was there, he was always busy with family or women.
But Sarah had a more well-developed life locally, being a woman who occasionally strolled around the city and enjoyed the local options, such as theaters, restaurants, etc.