Not at all. The US has issues with Iran's efforts to generate nuclear energy. Pakistan supports those efforts and the FM said as much during his address at Harvard. If Pakistan wanted to please the US, then it would have voted against Iran at international fora, like India did. Or it would have cancelled the IP(C) pipeline, as the US had asked for numerous times. Or it would not have assisted with the arrest of Rigi, who the Iranians claim the Americans were helping/funding.
Here, a mountain is being made out of a molehill by vested interests who want to misinterpret the FMs statement to try and concoct differences between the two countries that don't really exist.
No...issues come up when Iran builds secret reactors in mountains. Civilian reactors should be in the open like all other NPT signatories and not build in secret locations.
Iran has signed away her rights to build nuclear weapons so if she does build weapons then the international community will act.