This comic got me depressed... not! It simply probed my mind. It hurt me. And yet just like the characters here, build me up again after they break me. Punpun, I never saw your face but I wish I did.
The author gave us the climax already thus the story went to falling action. This means that the story would be reaching its conclusion and we, readers already have an idea how it would go. That is the reason why the story became boring.