The story is unfinished.
A separation is thought to be the end, and that thought will linger for a lifetime.
"Shan An, I love you more than Tony Leung loves Maggie Cheung."
"Kang Jin, actually, why am I still thinking about you?"
"Wei Yuhao, you are really the stupidest and stupidest idiot."
Be it love, be it thought, be it fool, there is never real reason in love, and our story is never completed.