I think it might just be a weird alternative title translation?
Sorry to hear about your scum ex though. There's plenty out in the sea. I hope you find someone who will treat you right.
The actual title is more like "Scum must die" the title written is a bit of a mistranslation, but I do see a distinct lack of dying here
Well it’s not like deaths immediately happen it usually happens towards the end of each story section
Not really man hating manga per se, but if you wanna see men being dominated, check out this list: http://www.mangago.zone/home/mangalist/460281/
Where are the cheating men? I was specifically promised the death of cheating men.
Note: My ex cheated on me and treated me terribly, so I am really in need of some good man hating manhwa.