The character Bella in "Midnight Sun" by Stephenie Meyer illustrates a maturity developed from her challenging upbringing. As a child, she was forced to assume the role of caretaker, which significantly shaped her personality and outlook on life. This responsibility made her more independent and self-sufficient, but it also created tension in her relationships.

Bella's reluctance to accept care from others stems from her ingrained sense of duty. Having taken on adult responsibilities at a young age, she feels that it is her obligation to look after those around her. This mindset contributes to her struggles with vulnerability, as she associates care with weakness rather than a shared human experience.