divaitis
a contagious attitude in which one will act bitchy, snobby, and/or self centered. usually present during the ages of 15-18. sometimes titled 'a drama queen'. persons may suddenly revert to childish and immature ways. 

"buffy is acting like such a drama queen. she thinks that the world revolves around her and gets mad when people don't follow her command or give her attention."

"betty is so immature. she should stop acting like a bitch and go back to 2nd grade."

"i think someone has caught divaitis."