Based on the question given this is the answer:
He thinks she is worried but optimistic about her husband's
health.
In the central theme of the story, it is given a fact that
the belief of superstitions is something to be afraid of, although people have
taken a wise decision to trust on medicinal treatments.
The view of everything.... hope this helps.
Answer:
The conflict between the fact that this is so obvious and the fact they didnt think about it