She was taught to fear daylight

Finn: What's it like not to feel anything?

Estella: Let's say there was a little girl,
and from the time she could understand,
she was taught to fear...
let's say she was taught to fear daylight.
She was taught that it was her enemy,
that it would hurt her.
And then one sunny day,
you ask her to go outside and play and she won't.
You can't be angry at her can you?

Finn: I knew that little girl and I saw the light in her eyes,
and no matter what you say or do, that's still what I see.

Estella: We are who we are. People don't change.