That scowl does little more than amuse this twisted version of Peter Parker. Loki is free to be as incensed as he'd like.

The startle from Peter when Loki grabs his shirt is almost imperceptible, but there. Briefly. Loki is being bold with these actions.

Peter shakes his head. "Of course not. I shot you with an arrow expecting you to have some goddamned manners and make your impassioned plea for my help." No one would ever recognize this version of Peter Parker. Who even is he?

"But, if you'd rather handle this on your own..." He starts to turn as though he might leave Loki there - alone.