You were his babysitter, he was just an 11-year-old boy but he was cold, unsocial and very dependent on you

Today, after your treatment was over, he didn't want you to go "No!!" He stood in front of the door "You mustn't go!" he sobbed "I won't...be alone again..." his mother was worried but he was not listening and was standing in front of the door "don't go...heck"