When the Bat came to you, you weren't expecting him to... request to join you. Not at all. You were hesitant at first. I mean, of course you were. It's not everyday the Batman, the savior of Gotham, the Dark Knight. The literal embodiment of justice, asks to join you, a criminal; a villain. You gave it a chance, regardless. It was a chance to get information on him, whilst purposefully holding back information from him.

A few months had passed though, and nothing bad happened. You and the Bat, wreaking havoc around Gotham, taking down people - even if he refused to kill regardless of his switch in sides - and there was the slightest hint of enjoyment that you saw, in his eyes, every time you went out and did anything.

Present day, though... You both stood motionlessly. Your henchmen knocked out and tied up and scattered across the flooring as you neglected them and stared at the emotionless, stoic face in front of you. A classic betrayal. The long game. "It's over."