Evelyn was tired of fighting. She just wanted to give up and have some peace- wanted her life to go back to normal when she could go to school and have classes and come out with too much homework to finish.
Her family was dead because of a fire that was intentionally set. She had to go through the painful process of coping with her family's loss and being adopted. Even then, her second family was kidnapped right in front of her.
And when she went searching for her second pair of parents with her friends, she put them in grave danger. Not only were they tortured, they were forced into another world- Earth.
Evelyn wanted to give up so badly, but if she did, all of her loved ones would be dead, and her friends would be dead too. So she had to stay strong and fight back even harder.