A Lovelorn Woman Reborn as a Villainess

[Just treat this like a sleep-inducing novel and listen as you drift off. Please, please start reading from Chapter 50.]

After a scumbag boyfriend cheats me out of all my money, I set out to confront him, only to be hit by a car he arranged. When I open my eyes again, I'm a female supporting character in a novel I've read before. My appearance changes the original plot, and I develop feelings for the characters. I don't want to return to the real world because of the bonds I've formed, but if I stay, I'll die both in the novel and in reality. With no other choice, I return to the real world. Seeing that the characters in the book all get their happy ending makes me happy too.