The one real thing he had thought he contributed was the mental bond that brought them together, made it easier to communicate. But apparently they hadn't needed him at all.
Of course. He missed them, would give anything to undo what he'd done but the secret, stupid hope that they'd missed him as well had clearly been as pathetically in vain as he'd feared. They didn't miss him. Didn't need him. Nobody needed him unless they were bored and wanted to be amused and entertained. He was a fool in every sense of the word.
So why were they in Terem? How had they known to find him here?