Diggle and Laurel in “Unfinished Business”

Diggle

He's not coming back. Oliver. I know you don't want to believe it, Laurel, God knows I don't but, he's not coming back.

Laurel

Are you? Are you coming back?

Diggle

I don't know. For the first time since I met Oliver Queen I don't know what happens next. I know it's silly, but I still like to think of myself as Oliver's bodyguard. I just couldn't protect him. It's funny. He was worried something would happen to me.