It's called avoidant attachment. Women are experts but men do it as well.

Men need respect, companionship and sex (in the service of companionship). That is it.

Women can't or won't see this. Mothering him does not meet any of these core needs. Forcing him into the role of a man child never pleased any woman but they do it all the time.

If he resists, he's a controlling asshole. If he acquiesces, he's a beta simp. It's tough for men.