How does the poet’s reference to the portrayal of love in films and songs contribute to the poem’s meaning(Lines 17-19)?

How can i but "as william walking with his wife was seen"as a short sentnse

Cameron, who has an extreme and unreasonable suspicion of other people and their motives, suffers from paranoia which is a psychological disorder characterized by delusions of persecution or grandeur, was absolutely sure that someone was following him even though he was absolutely alone and hadn't seen a car for miles and miles.

Why was kennedy concerned about the use of nuclear weapons