just my personal observations. Men are trained from infancy to be oblivious to emotion and feeling. You can observe this even in young children. Picture a young child, say 3 or 4, falling and hurting itself. The response from people is likely to depend on if it is a girl or a boy. Girls will get a sympathetic ear and compassion. While boys will likely get the same, it will be prefaced by things like "don't cry, you're a big boy. Toughen up." I'm sure we've all seen such things.
The only feelings men are trained to respond to are hunger, thirst, the sexual drive, and anger. The other emotions are seen as feminine. Love, while given some latitude, is still to be expressed only in confined settings in prescribed ways. Consider how women hug their friends and share all kinds of intimate and personal stories. Now picture men doing the same things. You can't, can you?