The romantic relationship doesn’t evolve that way. They meet as adults and there is nothing romantic between them at first. Since I read the novel, I pretty much know there’s a lot more going on for the main couple than meets the eye. It will all be revealed later.
She didnt use her kmowledge to make herself the most important person to the ml, she used it to help make him stronger (cus he inevitably had to) and then tried to set him free (which obviously didnt work) plus ml didnt even know who fl was other than the (fake) name he was given. That aint grooming dawg, hes just rlly good at mental gymnastics, as all male leads are.
So cofrrect me if I’m wrong. The mc an adult reincarnates into the body of a child uses the knowledge of her books to become the most important person to the protagonist in her books which is a child with no adult reincarnated in him. Then enters a romantic relationship with said child when he grows up. Isn’t this exactly what grooming is?