The Acting Princess's Journey to Survive

Zhou Er, the second female lead in a modern TV series, accidentally traveled through ancient times due to an explosion scene going wrong. Unexpectedly, she traveled through time in the script and became the arch-rival of the character she was supposed to play, the heroine Luo Fei in the script. Well, it seems that God took pity on her life as the second female lead after ten thousand years, and finally gave her the lead role for once. But why doesn't this develop according to the plot? Why does he love her when he doesn't love her?