[PapaBear3625]

Men can be hard to live with. It used to be that women had little choice but to find a man willing to support her, and have children with him so that they would have somebody to support them in old age.

Now women can support themselves, and pay into a 401K. Thus, they can be very picky, and have the option of staying single.

[HamiltonJay]

Until they realize their youth is gone, their fertility is nearly over, and by then they are so stubborn and set in their selfish ways they are impossible life mates.