I don't think it's supposed to be a parody of those typical whiny songs. The song itself is one big dichotomy -- the melody and tempo are very upbeat, the instrumentation sounds like it's a pretty happy song. But anyone who pays attention to the lyrics sees it's the exact opposite.
In terms of the lyrical content, the lyrics are obviously hyperbole for dramatic effect, but the feelings are all very real.
I don't think it's supposed to be a parody of those typical whiny songs. The song itself is one big dichotomy -- the melody and tempo are very upbeat, the instrumentation sounds like it's a pretty happy song. But anyone who pays attention to the lyrics sees it's the exact opposite.
In terms of the lyrical content, the lyrics are obviously hyperbole for dramatic effect, but the feelings are all very real.