Responses
Im pretty sure attempting suicide is enough suffering for the both of them.
Using cutting as a way to propel your schadenfreude isn't something you should say because its pretty insensitive to the already serious issue present in the manga.
Besides, if the author added cutting on top of the suicide, it would stagnate the narrative.
It was the best story ever, but the uke at least should cut his wrist then the face seme will make after that ah........that face would be the best!