In the book "Love, Rosie" by Cecelia Ahern, the protagonist expresses a humorous and exaggerated perspective on childbirth, comparing it unfavorably to exercise. This statement suggests that the challenges of giving birth are trivial when contrasted with a strenuous workout. Additionally, the phrasing implies a lighthearted jab at someone named Gary, hinting that he may be overly dramatic or sensitive, further emphasizing the speaker's comedic take on childbirth.

The quote also humorously suggests that the difficulties associated with childbirth could serve as a method of interrogation for prisoners of war, insinuating that such experiences are intense and could invoke strong reactions. This hyperbolic suggestion adds a layer of dark humor, illustrating the speaker's forthright and possibly irreverent attitude toward tough situations. Overall, this moment captures the wit and banter typical within Ahern's writing style.