Physiological reasons
Men come from the uterus of women and are raised by them. The companionship of women has given their lives a connection, so even without love, they still hope to have a marriage and a family. However, once they get too close to women, they will develop fear, fearing that the dignity and strength of men will be melted by the gentleness of women.
Psychological reasons
All kinds of loneliness are actually due to a lack of security. They both crave intimate relationships and are afraid that their immature selves will be drowned out by the care of others, so they are reserved, cautious, and prefer not to overindulge. Men can be profound, tall, and powerful, like a big tree, but they do not have the ability to reproduce a tree into a forest. Big trees are naturally lonely, and their spirit requires them to have enough distance from others.
Sociological reasons
Since infancy, they have accepted the belief that 'men are strong', and then the shadow of 'fear of not being strong' lingers throughout their lives. When supported by women, they can still feel their strength; When they are alone, they lack the confidence to freeze their 'strength', resulting in anxiety or even fear. When men lose their vigilance and aversion towards women approaching them, it means that they have pinned their hope for alleviating loneliness on their intimate relationship, both physically and psychologically. So, in times of peace in the world, when men and women fight, home is the best battlefield. Their means of warfare are not fists and feet, but will. The east wind cannot defeat the west wind, which is an interesting sexual relationship.