Freddie stares. There's very little else he can do. He stares mutely because a man has just appeared on his bed where the bat was creeping and he thinks he's probably unconscious or delirious because this isn't something that happens. So all he can do is stare.
Even when Bel's other shoe hits the man-bat (batman? ha!) it doesn't seem to sink in. And the guy is still crouched on his bed. Freddie thinks it'll fucking hurt if he topples slightly-
"What the hell is going on?" he asks wearily. Well, if he's dead or in some kind of coma, at least Bel is here. Glowing like his angel. He smiles, even though she's ranting at the guy crouching over him.