" Traitor.” Nero Muttered.
Temper looked over his shoulder. “You say something, buddy?”
Nero scowled. “You betrayed us.”
“How’d you figure that?”
“You pretended to be one of us.”
“I was undercover, jackass. Pretending to be one of you is what undercover means. I can’t betray you if I was never one of you to begin with.”
“You said you were my friend.”
“If it makes you feel better, you still hold a special place in my heart.”
“Shut up.”
“Need a hug?”
“Shut. Up.”
Temper grinned. "

― Derek Landy , Resurrection (Skulduggery Pleasant, #10)