Berenice is the character who is said to suffer from monomania and in general the person experience more anxiety
Explanation:
When a person is affected with monomania the affected person develops the symptoms to have the excessive desire to spend or with the increasing anxiety with one object and the desire and the pleasure obtained from that will be innumerable
They will have an extreme obsession over a single thing or a single idea or a single subject they will also have certain delusion in paranoia rather than strictly limited to a certain group
Answer:
never fails to disappoint means is that the thing, or perhaps person, you are referring to always disappoints.
