Living as the Villain’s Stepmother

Corrected title “Living as the Villainess Stepmother”
I became the villainess stepmother who is doomed to suffer greatly in the hands of the male lead, who will return as a tyrant due to his years of child abuse.
I can’t die like this. No, I was determined to survive.
However… Why does avoiding a gruesome fate seem so easy?
And, to make matters worse, my husband began to obsess over me.