Final answer:
Felix is considered a controversial child because he displays a mix of aggression and prosocial behavior, making him both liked and disliked by his peers.
Step-by-step explanation:
Felix exhibits characteristics that make him a challenging individual to categorize. He has many friends suggesting social success, but he is also prone to hostile, disruptive behavior, indicative of aggression. Felix's relational aggression and bullying are forms of hostile aggression and perhaps instrumental aggression; the former is intended to cause pain out of anger, while the latter is about achieving a goal without necessarily intending to cause pain. However, Felix also shows prosocial behavior, engaging in positive acts that benefit others. This combination of socially adept behavior, aggressive tendencies, and prosocial actions suggests that Felix is a controversial child. Controversial children are known to be liked by some peers due to their positive social interactions but disliked by others for their aggressive behavior.