I always have a good laugh reading these threads reacting to articles in newspapers with "quotes", I mean .... why bother. The guy being interviewed can't win. If he had said he doesnt want to comment, you would all be saying that means he isn't fully committed and didn't say he was staying. If he said he was fully committed and staying you could be sure the next question would be "Wouldn't you like to play for Barca then?", to which he would have to reply with a quote that would be in all the newspapers the next day with the original commitment left out. If he only said again he was committed and is staying, there would be another follow up question or a "coy about his future at City" headline .....
You can't blame the guy for how the press uses the quotes he gives in the papers the next day. Journalists are out for headlines not reporting on boring people happy to be where they are. He is young, and the press generally are wily old professionals and are very good at what they do.
To attack the guy's character because of what the press report , frankly, shows just as litle loyalty to him as you are accusing him of showing to City. Think about that one .....
Maybe in his mind he wants to go to Barca, maybe he doesnt. You certainly won't find that out by reading newspapers, you will find out by seeing how he plays on the pitch when he is back.