His reaction is almost involuntary. Chalk it up to instinct or whatever, but he wasn't going to just ignore her. He couldn't.

James goes to the door with the intent of opening it but...hesitates. He's been a human longer than he's been a werewolf and he's been instilled with the lesson that you don't walk into a bathroom while a girl is in it. You just don't. He was already violating that now, and it felt like he would be taking it a bit too far if he opened the door.

No doubt she could see his silhouette through the foggy glass if she looked.

"Skip?"