[ItsTheMediaStupid]

In a frictionless system. Neither earth nor the moon nor the combination is a frictionless system. Energy is lost from both bodies by heat radiation--very deep infrared--and both will eventually stop rotating.

That makes sense. But aligning up with the same face does not. I think most agree that the moon is facing the earth because it split from the earth.

[RightWhale]

I think most agree that the moon is facing the earth because it split from the earth.

No, they don't.

[SunkenCiv]

I think most agree that the moon is facing the earth because it split from the earth.

Satellites in prograde rotation gain momentum from the parent body, which means the diameter of their orbits increase. There's a similar tidal transfer of momentum from the satellite to the parent body, which accomplishes the same thing (the distance between them increases), but generally at a smaller scale. The satellite will generally reach 1:1 resonance first.