Oliver Queen: I don't have time for a lecture, John.
John Diggle: There's no lecture here, Oliver, but you should know that Andy gave me a lead on Darhk and I've been working on it.
Oliver Queen: Good. What have you found?
John Diggle: Unfortunately, it was a dead end, but you should know...
John Diggle: But nothing. But nothing.
John Diggle: Oliver, I know you're hurting, man, but you should know that whatever your play is... I got you back.
Oliver Queen: But?
John Diggle: But you've come so far, Oliver. You've recovered a humanity that you lost when I first met you. I know you want payback for what Darhk did to Felicity, and you should. But don't lose what made her fall in love with you in the first place.