Kim Yun Ji will just remember it as a stormy winter night.
She loves the angry sound of thunder. And he, her husband, Kim Jongin loves the way she closes her eyes to hear the sound properly.
Their lives going on smoothly.
It's a mixture of positive and almost positive feelings. Well, they are human too. They too get pissed time to time. They too shout at each other.
The night is the same. 
Jongin comes back home, soaked, tired.
Foolish girl forgets to eat and screams like a child, " I. AM. HUNGRY."
"Have you eaten?" he asks.
"NO. WHY SHOULD I?"
"You are whining because of your hunger."
"YES. I AM. PROBLEM? "
"What happened to you? Stop being a child now. Let me change the dress. Then we'll talk. "
"NO."
"You want to talk now? "
"NO."
"Then what?"
"NOTHING! "
....
....
Yun Ji successfully makes him a bit too much angry. So he slams his fist on the nearest wall. 
It doesn't scare her.
But does hurt. And the realization also hits her not-working-the-way-it-should-be mind, how wrong she is!!
She turns away, goes to the bathroom and closes the door.
Overwhelming emotions.
How stupid a human can be!
She does something awful.
She picks up the hidden blade.
Soon after, a freshly cut artery makes the white tiles of the bathroom red. Flowing red. 
He knows something is wrong. He knows her.
So, after knocking the bathroom door for a bit too long time, when she opens the