..why do people shout when they argue....

why do people shout when they argue? i was once told by that someone...............

'When two people are angry at each other, theirhearts distance a lot. To cover that distance they must shout to be able to hear each other. The angrier they are, the stronger they will have to shout to hear each other through that great distance.'

'What happens when two people fall in love? They don't shout at each other but talk softly, why? Because their hearts are very close.The distance between them is very small...'

'When they love each other even more, whathappens? They do not speak, only whisper and they get even closer to each other in their love. Finally they even need not whisper, they onlylook at each others eyes and that's all. That is how close two people are when they love each other. 

p.s : i love u