Pakistan has been in great crisis ever since and they would never come out it because their government is corrupt and they don't want to benefit their people.
USA has been misusing the the air space of Pakistan for long and they are killing the soldiers and civilians of Pakistan for years.
It is not one-sided relationship. The Americans are using Pakistani airspace and were using Pakistani territory to transfer military equipment to Afghanistan (before they pulled out of that country). In return, Pakistan received hundreds of millions of USD worth of military aid (at a time when they needed the funds). And if the Americans are helping someone, be assured that the help doesn't come for free. The recipient need to dance as per their whims and fancies. And this is not something unique to Pakistan, but applicable to other US allies as well (including Germany and Japan).