[And what if one of them cornered her in here while she was alone and vulnerable?! He should stay and act as a human shield protect her...!]

I-it is fine, as long as you are not going to do anything unseemly.

[She's trying to figure out who he is based on his looks, but if he's not facing her, she's left with his hair colour. He looks sort of like a northerner, in that case...]

Er...truthfully, I am not sure I feel quite safe by myself.