After the Strategy Failed, All the Male Protagonists Became Yandere

I dressed up as the heroine of a bloody sadistic novel, and the system forced me to do the "heart-breaking" plot, so I just put on a show and enjoyed the glory and wealth. As a result, the male protagonists collectively collapsed: "Why didn't she follow the script? She doesn't love us anymore?!" - So, they evolved from cold-blooded wife-beaters to even more terrifying love-brained spoilers.