She thinks she went back in time because she didn't fulfill her role properly, so when she thought about how she grew up with the ml, she remembered that he was supposed to end up as a tyrant.
Then she noticed that he was no where near being a tyrant, and was just a really good kid. And she thought that this was because she was being too kind to him, making him a softie, which is why she went back in time.
Basically reason why she flipped her attitude and decided to start trying a different strategy was so that she could turn him into a tyrant
Haha it's funny how isekai'd ppl don't think of cliche tropes applying to them. When jade showed some changes all of us knew he somehow came back in time too but fl didn't think of the possibility
Why fl was trying to be mean to the ml. In the og novel, she was supposed to give care to jade. Or is she just trying a different strategy