Diary style, yandere male protagonist, scumbag female protagonist
One week. She loved him and I killed her.
Second week. She didn't love me, she was killed by me.
Three weeks. She looked at me with tender eyes. She is dead.
All around. I married her. Divorced. I she got married. I killed her.
Five weeks. She and I are married. We are together.
So in fact, the heroine doesn't create anything_(:_‖∠)_…