Alright then lets assume that Harvey after the scaring went into hiding so the mob wouldn't find him. His only outside contact would be Rachel Dawes who has a romantic relationship with Harvey. Rachel is worried about Harv, so she asks Gordon and a few cops she trusts to find him. Unfortunately we know how great Gotham PD is and it leaks to the mob who wants to finish the job with Harvey. Harvey is mentally hanging on by a thread in solitude when some hitman try to do him in. Naturally Harvey gets the jump on them first and kills them. That is when he finally splits and his alter ego Two-face takes hold. He knows that Rachel must have told somebody and goes to confront her.
INT- Rachel's Apartment - night
Rachel's room is neat and quite simple, rain is heard beating against the window outside. Her room is dark with the light from the outside illuminating her room. Keys are heard unlocking the door and Rachel enters her room. She is tired and soaked, and turns on the light. She is startled as she sees a wounded Harvey sitting in a corner of her room flipping a coin. A small table sits besides him and a small revolver and phone upon it.
Rachel - Harvey what happened?!
Rachel goes to Harvey's side to aid him
Harvey - Don't touch me!
Rachel - Why? Whats wrong?
Harvey - Cut the bull****, I know you work for Maroni.
Rachel - Harvey what are you talking about?
Harvey - His hitmen came for me, they knew where I was. Care to explain?
Rachel - Harvey I have no idea how they knew where you were!
Harvey - YOU'RE A LIAR!
Harvey pounds the table with his fist.
Harvey - I never figured Maroni would have had you under his thumb! How long? The whole time?!
Rachel stares at him
Rachel - Harvey you know me, you know I didn't do anything like that. Do you honestly think I would hurt you?! Do you think I am just another corrupted citizen in a broken city?!
Harvey glares at her. He flips his coin and places it on the table with his hand covering it.
Harvey - We shall have fate decide..
Rachel - Harvey stop this! You are not thinking with reason! I know you care for me and would never harm me or anyone. You love this city, I believe in you Harvey.
Harvey stares at her reflecting on what she just said. He takes a deep breath then in one fell swoop he grabs his gun and shoots Rachel. He looks at his coin which is a scarred head. He heads for the door turning off the lights. His silhouette is seen caused by the lights of the hallway. He looks back.
Harvey - I believed in Harvey Dent too.
Harvey slams the door CUT TO: credits or whatever