I became an extra that is loved

Lily was reborn as a charater in a novel she read, The problem is shes not a cannon folder?! who was she and why was she born in the villians family

"Theia father got you your favorite stuff animals!"
why is the big boss acting like a daughter fool..

"Theia come play with your favorite brother!"
"Theia would rather read with me instead"
why are the main villians fighting on who im playing with arent you supposed to hate me?!

"Theia lets run away together!"
why dose the heroine want me to run away with her?!

"Theia..... please don't ever leave me.. again"
Why dose the heroine brother seem to know me from somewhere?!

"Theia they hurt you why can't I hurt them back?" Why is my third older brother wanting to murder people?!

"Even if you run far away I'll find you no matter what.." why is the second prince obsessed with me?!?!
I'm an extra that is loved?!?!