Wahahah ... I am a sucker for these things just like Beethoven.

But seriously lah, sometimes we need to be reminded that we are
human, that love for all its goodness and hope has another side to
it ... the pain, the suffering, the loneliness, the sadness
...
I think we exhibit a stronger response to unrequited love as
opposed to 2 people finding true love ...
We will feel happy for the couple who finds true love but the
feelings of sadness will inevitably be greater and more heartfelt
when we know of somebody who has experienced the painful side of
love.