Answer:
He does not have a psychological disorder.
Explanation:
Charlie does not have a psychological disorder, he just feels very insecure to reveal his sexual orientation for fear of judgments and prejudices that he may pass. Charlie lives in a heteronormative society, where homosexuality is seen as incorrect and even immoral. This causes homosexual people to be harassed and humiliated. Charlie is afraid of going through this, which is a common fear for anyone who acts against the standards raised by society. Charlie's fear and concern is not exaggerated or meaningless, but normal and justifiable fear, so we cannot consider that Charlie has a psychological problem.