Diggle, Oliver and others in “Unfinished Business”

Diggle

Well, Diaz will be taken back to Slabside for reneging on his side of the deal. This time, he'll stay there.

Oliver

Still need to think about Dante. He's not gonna forget what happened tonight.

Felicity

I won't, either. You could've gone after Dante, but you chose Diaz.

Diggle

Last year, I had the opportunity to catch Diaz, and I let it slip through my fingers. I wasn't gonna make the same mistake twice.

Felicity

Well, what about Dante being the greater threat?

Diggle

When I knew there was a choice between catching Diaz or Dante, all I could think about was what letting Diaz go meant to you last time, Felicity, so in that moment, I decided that sometimes the best choice is to just protect your family, and that's exactly what you two are.