I'm sorry but I cannot bring it in myself to forgive the prince at ALL. Even if it was a past life, he shouldn't have no consequences happen to him. He fucking ruined tia's life and if the author's like "haha it's just a past life tia's gonna end up with him" some tables are gonna be thrown. Also, isn't the whole theme of the story change your fate? If instead of being the queen of the prince she ends up being the empress instead, I'd find that really unsatisfying.
This took me five seconds to read and I'm already in love