“Of all kinds of suffering and bondage arising from various attachments, none is greater than the suffering and bondage arising from attachment to women and intimate contact with those attached to women.” (SB 11.14.30)
Because the experience and urges of sex are so intense, and the syndrome of man/woman relationships surrounding it is so complex, it diverts the conditioned soul’s attention away from Krsna and deludes him more than any other trick of maya. Sometimes the foolish conditioned soul experiences great delight in enjoying sex; at other times he is frustrated and burns in the fire of lust. Or, when spurned by a lover, he suffers mental agony, sometimes so severe that he is driven to kill the loved one, or himself, or both.
The loss of a partner to whom one is intimately emotionally attached, by death or other means, leaves the remaining partner with a broken heart. And especially in our most abominably degraded modern society, thousands of people’s lives become shattered by having their bodies exploited, either forcefully or tactfully, by others.