The way I see the whole Hammilton - Button deal is as follows:
McLaren: Lewis, you need to save fuel,
both cars are doing the same (this is very important to note).
Lewis: Jenson is closing in on me, you guys. Ie. how can he be doing the same if he's closing in on me?
Lewis: If I back off, will Jenson pass me? Ie. have you told Jenson to save fuel as well like you said or not?
McLaren: No, Lewis, no (call me crazy but just from the way the guys says it I think you can tell he's lying).
It was a legitimate question from Lewis and his reaction after the race was very understandable. He didn't expect the team to give him an easy victory, but if the team says to him to save fuel and that Jenson is doing the same, but Jenson gains rapidly on him when he backs off it's very understandable that he's confused and wants to know what the **** is going on. Ie. am I racing Button or is he on fuel saving mode as well.
5haz, I have to agree with the other guys on this one. Yes, it's a race but team orders have existed for a long long time now and as a racing driver it's only logical that you expect your team to give you accurate information. If they'd said "Yeah, there's a chance Button will make a move" then he would have been more defensive and Button would likely not have been able to get so close to him. But the team assured him he was on fuel saving mode as well and would not make a move so obviously he was surprised when Button did what he did.
I mean... it's totally understandable, I don't see what you don't get or find so strange or whatever