He thinks that every security guard knows who his friends and girlfriend are and that they will let them in everywhere without a wristband/permit.
Once he got pissed off because his girlfriend was not given free water, and then he made a scene about it.
The second time, they did not let his girlfriend into the backstage area because she did not have a wristband, so she started crying and he started making a terrible mess.
He left in the middle of the press conference because of it.
Just a few months ago, he was earning money by returning plastic bottles to a vending machine, and now he thinks he is superstar.