The Gunners midfielder said: "I feel every time we lose or we don't play well it's like everybody's happy.
"We've been playing fantastic football. But it's true people like to see us lose. That's the way I feel."
Cesc added: "A little bit of everything has gone wrong in the last few weeks. It all started at Birmingham where we could have killed the game before they equalised.
"We could have made it 3-1 and then, after that little mistake by Gael, they had a penalty. But even then you can say it was not a penalty. Against Chelsea, two players were offside for the first goal. Then we made a few mistakes at the back and paid for that.
"For the most part, we controlled the game. I don't like to speak about the referees but they don't help - when they don't make the right decision the game can change.
"Referees don't always make mistakes. But it is small decisions like that which can make a difference to a season."