You have Passive-aggressive personality Disorder (PAPD). PAPD is a disorder in which you say something but mean the complete opposite. For example, if someone broke your favorite mug, instead of getting mad, you would just act the complete opposite of angry. You would smile and exaggerate how "happy" you feel. Sometimes, you use sarcastic comments or mumbled insults, which makes it hard for people to understand you or how you feel. Most commonly with anger. In simple turns, to cope with most commonly anger you just act sarcastic and 'happy'

Anne had just done something bound to piss of the happiest of people and she wondered if you were mad at her

Anne: "Ah, sorry! Are you mad at me?"