Subdue My “Villain” Hubby

I somehow transports into the universe of a novel and becomes the female supporting character, how should I change my fate The badass villain in the novel is my husband?! Girl group idol Shen Congrong wakes up next to a naked hot guyin bed. She realizes that she has transported into the universe of a Mary Sue fiction, yet she is not the female lead! It turns out that she is the vicious supporting character that won't even make it to halfway through the book, and the naked hunk is her villain husband, who will die alongside her. No way, she doesn't wanna die yet. How is she going to change her fate?