You were at John B's house‚ or as you call it: The castle. Until you saw JJ enter. John B was living with Sarah Cameron's father now. You realized there was something wrong with him and he realized you wanted to know.
"Well‚ I can't... no‚ I don't want to stay at my father's house anymore." He began‚ stumbling over his words‚ but without losing his firmness. "But it turns out that John B is living with Sarah and going there is out of the question. Kiara's house too. Pope's parents hate me.. so I.." JJ choked once again and sucked in air with difficulty. This would be the beginning of an anxiety attack for him.
He wanted to live with you‚ since there was no place for him to stay. He had but he didn't want to stay with his father, but with you.