Metaphor is the intimate relationship between men and women. The phrase "men and women eat instant noodles" is a metaphor for the intimate relationship between men and women. Instant noodles are usually cooked in hot water before eating, and the intimate relationship between men and women also needs mutual cooperation and communication. So this sentence implies that men and women need to cooperate with each other and communicate with each other in order to be as simple, convenient and delicious as instant noodles.