The point of Frozen is Princess Anna. She believe in Prince Hana will be love and help her. But in fact, He look like a snake. He try to get a power from her. That is different from Queen Allsa. Who always love her sister, but she can do just worry and keep an eye on her sister. Because if she was close to her sister, that will be danger to her sister too, But finally the one thing, that can destroy curse is the real love from sibling or family.