How were Roberto and edna different the giver?

Oh, dude, Roberto and Edna were like total opposites in "The Giver." Roberto was all serious and rule-following, while Edna was like rebellious and free-spirited. It was like watching a cat and a dog trying to get along, you know? Like, one was all about the system and the other was like, "Nah, I'm gonna do my own thing."