Answer: Personal fable
Explanation:
Personal fable is the belief persisted by people, usually adolescent, that they have unique qualities and different life than others also being center of attention among people .They will not have to face any issue or problems in life .They also believe of having imaginary audience around them.
According to the question personal fable is depicted through scenario as Carl is believing that he is a special boyfriend with romantic passion along with outstanding concern and poetic traits for others that he thinks no one else has.Thus he has imaginary thoughts
