Most of the romantic movies, anime are made by men. Men give gifts more often .

They are more clingy often than not, but girls are disgusted by boys like that.

Milions of forums full of men talking about how much thry will want a gf.

They give gifts more often.

The nature , biology make men also more able to sacrifice for their gf.

Man will love a women even if she doesn t have nothing because they don t want to gain money and status from her, many women leave the men if he lose the job or all the money.

Also many men will choose a cute , inocent McDonald Worker rather than a lawyer women