Rena's party and Simon's party returned to Lelvern at the same time, both having completed their quests. There was a tension in the air between the two parties and Lucius was at the center. The focus himself was either ignorant of the situation or was purposefully ignoring it.
He went about the return to the city completely uncaring of the glares and stares he received. However, at camp time during the return trip, he did make sure to disappear into the woods and then returned when they were about to leave.
If she were not slightly concerned about potential negative interactions, she would probably have laughed at the boy's behavior because it very much reminded her of a cat again.