Felicity Smoak: I'm sorry she wasn't her.
Oliver Queen: I know. I'm sorry about Billy. He was a good man.
Felicity Smoak: Like you. So I'm guessing not-Laurel is on her way back to Central City then.
Oliver Queen: Secure lockup at A.R.G.U.S. I'm keeping her close, because if there is anything left of the real Laurel in her, I'm gonna find it.
Felicity Smoak: You know what? I could really get used to this newfound optimism of yours.