It tries to turn you to be the thinking-man statue, but I think this is a happy end. Although the future might only be in his dream, they did kick alive in the snow. The laugh melody was the same as the time after they jumped the shit out of the roof and they survived because of how imbecile their action was. And look at her face in the last page again, her face was more of saying "that's not a good joke at all". I want to believe in a happy end if there is any string of hope, but hey, that's just me.