Another example is the apple pie. In the chapter she bakes the apple pie she says she learnt it from her mother in Korea, and it’s seems like applepie with cinnamon is something new in Cayenas world. But when we see the memories of her childhood with her nanny it’s portrayed as if the nanny taught her and applepie is common. Of course it’s not outright said that the nanny taught her, and it never says if the pie contains cinnamon. But it’s still a confusing way to portray it.
Even though she was reincarnated before that timeline, since the princess experienced it all, the memories would be shown to the MC, from what I guess anyway. It's a common theme in these types of manga, especially if it's more of a revenge-type theme. Most times such memories are passed down to the soul that replaces the original so that they can properly have all the information and desire for revenge like the original did.
But I'd be terrified too if I meet someone that I know to be a creepy obsessive abuser. Just like women who would be scared to have an unknown man walk behind them at night even when they haven't experienced any misfortunes. And without even knowing the future he acted creepy enough already I had goosebumps while reading. But I see that it really seems like mc really thinks of herself as cayene.
Sometimes it feels like the author forgets that she was reincarnated from another world and not reborn. For example, why would the MC be so terrified of the princesses abuser? While yes she has Cayenas memories, MC is reincarnated before the abuse happens in the timeline. So she shouldn’t have Cayenas memories of the abuse. Is she terrified of what could happens? It’s like the story is confused by itself sometimes lol. Anyway this is not really a big deal, and the story works great and is a nice read.