Sutra:
132. Isvara SvAthanthryaththaiyum cEthananudaiya aparAdhaththaiyum kaNdu agala mAttAL.

Meaning:
Seeing that He is completely independent and that the chetanas are great sinners, She will not separate from Him even for the smallest moment.

Sri PBA Swami's Sarartha Deepikai:
The eternal togetherness of the divine couple also happens due to one of Her qualities.

Noting His great independence and that He can punish those who have sinned, as well as noting the countless sins committed by the chetanas, She is greatly concerned about what might happen if She is not around and therefore would not leave Him even for a moment.