noooooo wtf
Wtf the CP dies!??!
What a cp and who's the CP
Spoilers*
CP - Couple pair, meaning the ship/coupling of a series. The Couple in this novel is the main couple of the script/series she transmigerated into(aka the First prince and his partner)
Crown Prince
WHAT THE FUCK
Oh yea that short form too! Most people were using cp as couple pair so I assumed you too
From what I understood, the CP's death was inevitable. It was actually the stepping stone which made the FL to remember what happened in the original story and that allowed her to prevent her Mom/Sister's and the King's death. So no, the CP died not because she didn't do anything while knowing what'll happen, she was also unaware/doesn't remember the story at that time.
In the first place, she was never like the usual isekai protagonist who knows every bit of the story because what she had as a material previously was just a script. That's why only a major act in the original story made her remember the other things that will happen.