Harry instantly felt bad that the teen got the hit in the face. He should've said something. He should've been paying better attention. Now she may have a broken nose thanks to him. Well, shit.
"Hold on there!" Harry said and seized the girl by the arm, trying to rein her in before she likely did what they wanted. Even though he really did want to see her kick the Death Eater's ass and somehow he thought she might be able to do it. But it also left her exposed and made him look like more of an ass than he already did. He swung his arm out, the wand in it and he shouted, "Immobulus!" The man flung back, immediately freezing up and landing on the ground hard on his back.
Harry looked at her, "Shit, you're bleeding. Is it broken?"