SB 10.47.35

yathā dūra-care preṣṭhe
 mana āviśya vartate
strīṇāṁ ca na tathā cetaḥ
 sannikṛṣṭe ’kṣi-gocare
Synonyms: 
yathā — as; dūra-care — being situated far away; preṣṭhe — a lover; manaḥ — the minds; āviśya — becoming absorbed; vartate — remain; strīṇām — of women; ca — and; na — not; tathā — so; cetaḥ — their minds; sannikṛṣṭe — when he is near; akṣi-gocare — present before their eyes.
Translation: 
When her lover is far away, a woman thinks of him more than when he is present before her.
Purport: 

According to Śrīla Viśvanātha Cakravartī, 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.