Narcissistic Inferiority

When you're personally convinced that others are better than you but nontheless still act like you're better than everybody else, at the same time.

1: "I'm such a loser. I hate myself."
*Later*
1: "Screw you for messing up my order, it's your job, and I'm your customer!"
2: "You really have Narcissistic Inferiority, I feel you."