Bella

She was Bella Walker-Foley.
Cousin to both Bryce Walker and Justin Foley.
The baby mama to Montgomery De La Cruz.
The Walkers only let her in to make their image in the town better.
The Foleys' were in no position to care for her.
So, put into foster care at a young age, she never had anyone in her corner.
Not until Hannah Baker any way.
Then that person dies, and her world is turned on it's head.