u/D_Solless

I’m honestly don’t know if f I’m tripping, I’ve been looking for an anime (or manga), for a while now and I’m starting to question my sanity.
So the basic plot from what I can remember is that guy gets in a relationship with a girl, but his ex curses them that when they start to get close physically injury usually in the form of cut starts to appear on their bodies, the ex proceeds to jump of a building killing herself. Any leads?
Been looking for years.