Yeah, while the original ending was realistic in some respects, I think the author didn't deliver on their implied promise. Plus best girl is best girl.
Feels like the author accidentally made Nightingale the best girl and it's now parading death flags on her for the romance of the MC and the series' poster girl.
Which is BS.
The Anna romance feels forced, while Nightingale's would have felt earned due to her and the Prince actually developing a relationship.
Nightingale best girl.