Guyssssss, I really need some help finding this manhwa so the fl has pink hair and she is reincarnated as the saviour in a book and has to sacrifice herself which she does but she keeps getting regressed back and the second time the book's ml kills her due to jealousy and now in her 3rd life she proposed to marry the northern Duke who has black hair and red eyes, has a big scar on his face, long hair and who everyone thinks is a beast but he's just a big teddy bear in reality
Also that world G** is called as noathe I think so

No no noooooooooooo