Hal has no idea what one would mean about the lack of togetherness. He's always been good at drawing people towards him. You could put him anywhere and he'd find a way to fit in.

Other than around Bruce, Bruce could go and sit in his own corner. They didn't need a Bat.

"Oh yeah?" There's a touch of concern in his tone. Arthur keeping to himself was nothing to worry about, but an admission from him was. "What happened?"