SB 10.47.35
yatha dura-care presthe
mana avisya vartate
strinam ca na tatha cetah
sannikrste ’ksi-gocare
Translation:
When her lover is far away, a woman thinks of him more than when he is present before her.
Purport:
According to Srila Visvanatha Cakravarti, the same holds true for men, who become more absorbed in thinking of a beloved woman when she is far away than when she is present before their eyes.