The air was poisoned with grievances against the thing that held her back.
Those grievances spread to everyone surrounding her somewhat like the flu spreads in a school setting.
The people she loved became ill with the bad moods and dirty looks she had bestowed upon them.
Taking care of a girl bedridden with despair and a disease that resembles depression is not a enjoyable task.
Her disease poisons them and she has no way of beating that disease, because no one will escort her to a doctor.