Coffee every midnight

Everyone has a secret; small, large, absurd, burdensome…
Nineteen-year-old Rosemary Walker' s little secrets include her rather unconventional ritual: He drinks coffee every midnight. He has been her companion for several years, whom she cannot ignore – while he encourages her during the day, he puts her to sleep at night.
But there is one more secret – big, burdensome, absurd to some – and that is her struggle with bulimia. She proves to be a very strong opponent, perhaps invincible, especially when there is a mirror nearby.
And even though her friends and family support her, she is losing this fight. It seems the only one who can help her save herself is her grumpy teacher.