If Gasai Yuno is so ill, I think there is no love in the early stage and I am willing to die for a man in the later stage.
Most of the works, such as "Cold Cicada" and "happysugarlife", such as my sister's "Ayase", are all sick for love. In fact, Gasai Yuno's early attachment to each other's life and death mostly came from his own obsession and childhood pain. We don't love each other that much. For example, the comics of sick sister, constantly looking for the owner on the Internet, and finally killing them if they are not suitable. They just regard each other as a tool to soothe their hearts.
The real sick girl, Tanigawa in Japan, the cute girl who stabbed someone in Shinjuku recently, and the one who ate her beloved lover and is famous for cannibalism. It's really a mental illness. Can only say that love belongs to love. It is true to love yourself more than anything else. Cover up your distortion with love and satisfy your malice and desire in the name of love.