Spoiler for new readers(up till 64)
Of course fl worries for the og fl (telling her to have a stock of all kinds of antidotes)and that may be induced by the knowledge of her powers, but what can she do otherwise even? The backstory showed the cruelty of the emperor towards duke's mom . They need one less factor to worry about by ensuring og fl(who has superior powers) also doesn't side with the og ml which could increase imperial fam's fire power. If fl wasn't this forward, og fl would've been whisked away by the og ml who's now the presumed villain. To rekindle the hate felt for the emperor and why fl is going through this elaborate of a process to take vengence just refer to chapter 30. I maybe would've felt the same as u but nah th imperial family just need to go , anyways too much rant sorry
As much as i love this i hate the FLs relationship with the OG Fl she says all this great stuff about her yet she doesnt really worry for her and i dont think she would ever help the OG fl if it wasnt for her own goal it makes me sad ╥﹏╥