I just got done watching this movie a few hours ago. Here is my 2 cents:
I saw that it was labeled as a Black Comedy so right away I was expecting heavy absurdity, shocking and fucked up scenes to be humorous, and they did all this. The acting were certainly good from everyone but the characters were not very likeable nor relatable so finding some kinda connection to this movie wasn't there.
The movie wasn't my cup of tea either but what I disliked most about the movie is Bella is a Mary Sue. She's everything in the movie except wrong or defeated. She's trapped, she's the prisoner, she's the victim and yet she's the hero liberator as she is an innocent and pure soul and all of her actions are justified because she has a child's mind. She barely know consequences and she faces none from her choices whether good or bad which I think is a bad narrative. In the end it just feels like she took everything that was kind to her for granted and yet she still got a happy ending. The title of the movie suggests we should feel sorry for her but it didn't do nothing for me.
She faces consequences. Bella exists in a constant state of learning, when she enters a new, negative experience, she is facing consequences even if her personality doesn't linger on them. It's a story of growth and boundaries. The people who let Bella explore and engage with the world as they please go on their way. The only people who truly negatively suffer from Bella's actions are the people who were being controlling.