  The aim of the present work is to examine the role of discreteness in the
interaction of both co-winding and counter-winding vortices in the context of
the nonlinear Schr{\"o}dinger equation. Contrary to the well-known rotation of
same charge vortices, and translation of opposite charge vortices, we find that
strong discreteness is able to halt both types of pairs into stationary,
potentially stable configurations up to a critical inter-site coupling
strength. Past the relevant critical point the behavior is also somewhat
counter-intuitive as, for instance, counterwinding vortices start moving but
also approach each other. This lateral motion becomes weaker as the continuum
limit is approached and we conjecture that genuine traveling appears only at
the continuum limit. Analogous features arise in the cowinding where the
discrete coherent structure pair spirals outward, with rigid rotation being
restored only in the continuum limit.
