Why She Doesn't Come Back in Year Six

She returns to hogworts after her mamma is killed by death eaters. I feel so much pity for her in her tears over the exams, because this is a moment where she's been made prefect. The institution has told her that they see something really admirable, some leadership quality, some goodness in her. And and the situation is such that she can't see it in herself. So she is proving herself to be brave and rebellious. She is, by all accounts, some one whom i think we would know to greatly admire.