Whose problem is it?

Now here's a situation worth a debate.
Woman isn't happy with the marriage, yup, she wants more sex, more tender moments, less arguments and tantrums, but Man, on the other hand is perfectly at bliss. The woman gives in, offers the comforts and all is well in his world.

So who's at fault?
The man for not keeping the woman happy?
Or the woman, for wanting more than what the man is willing to give?

If the woman makes a stand, she now comes across as demanding and unhappy, she's the baddie, rocking the boat, stirring shit, discontented bitch.
But why should one settle, why should the man be allowed to get complacent.
During courtship, men are willing to move heaven and earth for a smile, no? what happened?....marriage?

And in a situation as such, who needs to come begging?