Sadness in Love

When my heart flutters, thinking of someone, I know I have a crush.

When my heart starts aching, I know I am in love.

When in love,

I clean up the rooms of my heart so that the visitor could come and stay,

but quite often, this rude brat bring uninvited friends, without asking…

Like, sadness.

As love grows, tears comes along.

As love becomes bigger, so does sadness, until I become confused….

Which came first?

The love or the sadness? Then I realize, damn, I failed again….

I still do not know the right proportion of sadness in love….
What is the right proportion of sadness in love?

Somebody please tell me the golden ratio….