How does Evelyn Waugh portray the disintegration of the Last family in London and Hetton ?

Tony and Brenda are a married couple who have completely
opposing goals and desires for their futures. But their differing desires (Tony wishing
for the quiet life on their enormous country estate, Brenda wishing for a more lively
social existence in London) are also a metaphorical representation of changing ways of
life in England at the time. The life of the aristocrats in the countryside is beginning
to be seen as archaic and old-fashioned, and Brenda's grudging affection towards Tony is
portrayed as a kind of boredom.