How does a crystal lattice differ from a simple ionic pair?

A crystal lattice is a 2D arrangement of ions, while a simple ionic pair is a 3D structure.

A crystal lattice is a 3D arrangement of ions, while a simple ionic pair is just one cation and one anion.

A crystal lattice is a single molecule, while a simple ionic pair is a collection of molecules.

A crystal lattice contains only cations, while a simple ionic pair contains both cations and anions.