Robin and Starfire in “Unfinished Business”

Robin

Hey. How are you doing?

Starfire

I am… sad for my sister.

Robin

And for yourself?

Starfire

I am just glad that the truth was discovered before I was replaced.

Robin

What are you talking about?

Starfire

Well, you… everyone was having such fun with her, and then Cyborg said-

Robin

Look. Your sister was... interesting, but she could never take your place. No one could ever take your place.