Finding people in the castle should have been a lot more difficult than it was proving to be. He had a feeling that the permanent denizens of the castle felt bad for their little band of humans and were being extremely helpful from the house-elves to the ghost and portraits. Even Peeves wasn't being annoying and that was as far as you could hope with a poltergeist.
Having found that Remus was in the paved courtyard, he went to find him. "It's quiet here," he said as he got closer to his friend. "I think everyone is trying to talk to everyone else." He didn't say that Peter didn't have many people here to reach out to. The only other person would have been Cassandra and she was dead.
"So you and Regulus, that's... are you all right?" he asked, knowing just how in love James and Lily were.