Grand left Dana and Bobby to talk about their own things, but mostly because he doesn't want to lose his temper again in front of Dana and his friend. It seems like his temper when it comes to Dana was a being out of hand.
But he still can't believe that Dana didn't tell her that she is Arbiter. He took the stairs to go down a floor from Bobby's office. He shook his head to chase away a certain memory of a girl promising him that what she is saying is the truth.
He met some guys taking a smoke break when he reached the floor below. He asked for some cigarettes from one of the men. It's been years since he touched tobacco but right now he feels like he really needs a puff.
Dana is different from the girl in his past. Heck, she's different, period. He should stop being a neurotic bastard overthinking everything. Things in the past should stay in the past.