The subject of this chapter makes me angry, appalled, and annoyed. Didn't even need to open the Wikipedia link to unfortunately know what it was referring to. To know that it happened, to know that it still happens in other forms in various societies/industries just makes me sick. Even happens with married couples in a more insidious form if the relationship/power dynamics are unbalanced...
I know that this doujin isn't afraid to going into some dark humor or provoke, and it can sometimes surprise us or make us uncomfortable. If it's social commentary, then keep on going, sometimes we need to face that we as humans aren't always good and can put other people in unfair situations, often to people we know and even ourselves.
Also a reminder that it doesn't take much to cross over from love to obsession, stalking, and much worse. Love and "romance" can be cute, until it's not. I really wish we didn't have to be afraid of other people, but unfortunately that's reality.