Pakistan — Ally or Enemy?

Let's look at a little bit of logic:

1. If Pakistan is our ally, then Osama bin Laden and al Qaeda are its enemies. In that case, a Pakistani that helped identify where bin Laden was hiding was behaving in a patriotic manner.
2. If Pakistan is our enemy, the Osama bin Laden and al Qaeda may be its allies. In that case, a Pakistani that helped identify where bin Laden was hiding was behaving in a treasonous manner.

Pakistan arrested the doctor they charged with helping identify where Osama bin Laden was hiding. He has now been convicted of treason, and sentenced to 33 years in prison.

Since Pakistan is our enemy, as declared by its own actions, why are we still sending them so much aid?