Felix is definitely scowling by the time Edelgard gets him out of the ring and steps away, but it's really only because he lost. He couldn't overcome this (admittedly unusually incapacitating) minor setback to reclaim the advantage and win. Ugh.

He accepts the ice without bothering to acknowledge the robot's presence at all, and he has no idea what a trolley is, but he does glance up at Edelgard.

What he means to say is something along the lines of 'fine, I don't need a babysitter, good match, bye.'

What he actually says is, "If that's what you want, consider it done." And then he pulls himself back to his feet, bringing the ice with him, and...waits.

"Well? Are you coming?"

...because apparently, if she isn't, then he's not going anywhere.