After Aria's departure, all Noah had in mind was endless thoughts. Although he had somehow managed to curb his sadness and anger in front of her and swallowed his grievances for the small duration, all of it came back to him when the solitude hit him.
Since he was all alone with no one but Rachel in the mansion, he drowned himself in his happy memories, the ones he had spent with his grandfather. And subconsciously, his eyes teared up. His anger towards his grandfather was justified. But more than being livid, he was heartbroken and it was not until he heard slow footsteps from behind him did he snap out of his painful thoughts.
"Noah, where's everyone?" Rachel queried as she looked around the now empty mansion. Even if she had been semi-conscious, she had heard voices around her when she had been brought back after being rescued. Moreover, she was not avert to the fact that Noah and Aria were staying together with Aria's father, Oliver.