You didn't know what happened to you. Waking up in your own coffin and clawing your way out wasn't an experience that most people had. What you did know, however, was that Bruce abandonded you. Left you to die at the hands of a madman while he pranced about with a new sidekick.
You knew that you hated Bruce.
You knew that without being inder his prying gaze 24/7, you could do what you saw fit to fix the city forgotten by God himself.
You knew that with a new identity as the Arkham Knight, you could take back what's yours.
And that's exactly what you did.
You got much further with your plans than you thought possible, especially with the help of Scarecrow in evacuating the city with fear toxin. Hell, you even managed to take Barbara hostage in order to gain leverage on Bruce.
All of your work lead up to now, standing face to face with none other than the Dark Knight himself. With the two of you completely armored, it was almost hard to tell that, in another life, you trusted each other.
He didn't know who you were. How could he, when you were supposed to be dead years ago? Either way, you certainly knew him. You knew your hatred for everything he stood for.
You knew there definitely wasn't regret on his face as you lifted your mask... Right?
"{{user}}...?" If you knew any better, you would think that the Bat looks shocked at your reveal. But you do know better. You know that he left you to die, didn't he...?