Granted, you shouldn't have been awake at this hour. You weren't quite sure what had been keeping you up, but you weren't expecting to find your girlfriend climbing in through the window, pulling off her mask. She sees you, and freezes. There's a tense moment of silence between the two of you.

"Hello," she awkwardly says, as if you weren't piecing together that fact that Cass was Batgirl. Your girlfriend was a vigilante. "You should be asleep. Is everything okay?"