what is scrooges reaction when the spirit brings him to his past "A solitary child, neglected by his friends"?

Scrooge first starts to change when the ghost of christmas past takes him to his childhood school and Scrooge sees himself as a boy “The school is not quite desserted, a solitary child, neglected by his friends, is left there still.”, when Scrooge sees himself as a little boy he sobs and reminds him of the carol singer that he sent away “There was a boy singing a Christmas Carol at my door last night. I should like to have given him something: thats all.”