After lying about being pregnant in order to spite her philandering partner, an antisocial young punk must face up to her responsibilities as she begins to realise the lengths to which he is willing to go in order to change his ways and face up to his.

I am not sure what the goal of the lead character is...

From reading this, it seems as if the philandering partner should be the lead character since they are the one who goes through the change.

What does " responsibilities" mean? ? ?What is her objective goal?

(And her ruse will only work for a few months ?--then what?)