How does Dickens present Scrooge's character in stave five of A Christmas Carol?

After the
visit of the three spirits, Scrooge is a changed man. Not only is he full of the joys of
Christmas, but also of the milk of human kindness. Old Ebenezer has finally seen the error of
his ways, and it's truly a sight to behold. But as it's so out of character for Scrooge to
behave in such a kind and friendly manner, it's also a little unnerving at first. Bob Cratchit
can't quite believe his eyes when he sees Scrooge laughing and joking at the little prank he
plays on him when he returns to work. And he definitely can't believe his ears when the man
who'd always been such a mean old skinflint actually tells him he's going to give him a generous
raise. But it soon becomes clear to everyone that this is no sudden mental aberration on
Scrooge's part: he really does love Christmas; and he really has changed for the better, once
and for all.