NEW Thought It Was the End, Only to Return to a Changed Genre

Though I was the villainess in the original novel, I dodged death flags well and faked my death to escape cleanly. I saved a poor child who was destined to die, sacrificed myself so the protagonists’ lives would go smoothly, and while hiding away, waited for my own happy ending.
Just as I was briefly rejoicing at the news of the original protagonists’ wedding, I returned to my hometown upon hearing of my mother’s death notice… and the original male lead, who was once my childhood friend and fiancé, said:
“If I’d known a mere death notice would lure you out, I would have sent one sooner.”
The male lead, whom I thought had married another woman, looked at me with unhinged eyes and smiled.
Why are you like this? You weren’t like this before.
“You’re not going anywhere anymore.”