Silence please!

It has always been told that a good communication is essential for a good relationship........I 100% agree with this notion. But human brain (and hence life) is so complex, that we can't define what to do/what not to do with predetermined rules.............Exceptions and variations are always there.
That's why in some occasions it is better to keep silent, than to take initiatives for a conversation.
Sometimes during argument, we speak something really nasty an unacceptable things...The other person is so hurt that he/she prefers not to speak and to keep silent for a while and avoid the argument. All of a sudden you realize "God! What I have done?"......You know that you were wrong and you have crossed the limits...........In especial situation like this, it is better to keep silent for a while, rather than trying to start a conversation for explanations........small time separation gives you time to cool down your head, you start thinking clearly and you are somewhat over from the sever grief that you had received from your partner's acidulous remarks.

Summary: Always try to sort out problems with healthy conversations, yet one should 'know' some special occasions when he/she rather keep silent.