Ladies lacks the initial energy/drive to pursue

happiness, ladies always wait for happiness/love, even if they may occasionally spot something, they do not take action to pursue. Unfortunately, this behavior is built in both by nature and encouraged by a lot of cultures.

On the other hand, men have constant drive for sex, which is a constant suffering for civilized man, he is always hungry. He is willing to compromise for whatever food he can get. Try and error, he has better opp to end up with right people.