that our FL is the original Beatrice. The Goddess wanted to correct the things that had gone wrong so she pulls our FL's soul from the modern world. But she is unable to return to her OG body as it was already occupied by OG Raeliana's soul. That's the reason for the soul instability. So.... Basically our Raeliana is the OG Beatrice and Bealiana is the OG Raeliana. She wants to kill our FL so that she can make the things flow as they are meant to be and can live well(OG Raeliana guesses/knows that she has to kill our FL or else she will die) and as usual, to get the ML, Noah (Sigh... Such a sinful man our ML is

)