Jesus addressed Simon Peter and the disciple whom Jesus loved

Jesus asked Simon Peter three times if he loved him.  He told him that when he was old, others would lead him.  He was to follow Jesus.  But Peter wanted to know the fate of the disciple whom Jesus loved.  Jesus said that he would remain until Jesus would come back.  Did this mean that the beloved disciple would not die?  This beloved disciple wrote this book.  However, a lot more could be written.  Have you read much about Jesus?