Answer:
One in which Ryan is getting free sex, while Hannah is simply getting screwed.
Step-by-step explanation:
Although this is the likely feminist summary description of their situation, it does contain a bit of truth. Men aren't on as narrow a time-table with their ability to be fathers as are women with their ability to be mothers. Women are under more time pressure, since, if they haven't any children by their mid-30s, the chances are pretty good that they never will.