He thinks Arsenal have treated him badly, the transfer to Palace that fell through at the start of this season. He thinks the fans have turned on him unfairly when we all wanted him to do well, more so than himself. He is a high profile figure whose public behaviour gets reported, only he can do something about that. Sure, he is not blaming Arsenal in that report but that's the underlying issue with him.
Sometimes an inflated ego can be an attractive thing, be it in a rock 'n roll star or a footballer, but that ego then needs to deliver to the back of the hall. Bendtner has never really delivered, most of us end up as failures in life and it hurts us, we hurt ourselves and others. I think that's what he has been doing for sometime and he won't get much sympathy because he has been more fortunate than most.