First love is a period of time
It never comes back
If the next love comes, time has to yield for that new love
It might not be as innocent as the first love
But it would be a little more mature due to the pain suffered with the first love
So first love become part of one's exhausted daily life
That's why first love looks like it can't be accomplished
Because no one talks about a succesful romance with first love
From: Korean Drama "Reply 1997"