He likely has an attitude, but he also derseves some respect. He is been a key member of the NT for many years through good and bad, and at 32 is finally getting his due as a Premier League starter. I don't blame him for retiring from the NT, I don't think that loyalty is an issue - he has put in his time and then some.
I do blame Skibbe and the EPO. You don't jerk around your stars in favour of the old boys who have no reasonable reason to get a start or a cap and yet still do.