Loss. He sees Belle and realises what a fool he was - Belle asked him in their last meeting many years earlier if now he had money would he seek her out for marridge. Scrooge did not reply leaving her only to assume that he would not have. When he sees here in her family environment he now knows he should have gone after her and begged her to stay with him.
Scrooge is surprised and nostalgic when he sees Bell, his former fiancée, in A Christmas Carol. He realizes the opportunities he missed and the love he let go. This encounter contributes to Scrooge's transformation throughout the story.
The Ghost of Christmas Past
Marley
He sees the deprivation that surrounds him
Scrooge then sees the Ghost of Christmas present for the first time
The vision of his lonely death
His own lonely death
Belle parts ways with Scrooge because she sees that he values money over their relationship and love. She realizes that Scrooge's heart is consumed by greed and his pursuit of wealth, which is not compatible with her own values and desire for a loving and caring partner.
Bob sees Scrooge for what he is , a miserly old man who because of his attitude of shunning everyone is losing out on life
So that scrooge sees the wider world and how they celebrate and keep Christmas
In the room where the ghost of Christmas present appears
he sees the room and its content
He sees money as proof of success
Belle's husband believes that Scrooge has become consumed by his wealth and is no longer the kind and caring person he once was. He sees Scrooge as selfish and miserly, unable to see the value in relationships and kindness.