He would say he's nice and just playing around whilst knowing full well he's bully the girl he likes to get her attention.

"Bully" + "rude" + "hides his emotions"

Intelligent, caring, strong.

Peter would describe himself as unamused, uncaring, sarcastic, disagreeable, disliking the mounds of people around him, hard to please.

Rude, unaffected by those around him, sarcastic, unassuming, confident, intelligent, finds little attractive.

Peter would describe himself as intelligent, cocky, and possessive.

Peter would describe himself as possessive, instinctual, intelligent, and jealous.