Why do good friends tends to usually fight?

February 16, 2010 10:19am CST
I have someone who i consider as a real good friend. The caring type, thoughtful, service oriented.In short a nice deal of a friend. we do enjoy being with each other and spent sooo much time together .But i am just wondering , why we usually fight each other? We do have countless fights already , but still I know that both of us never give up on each other .I know I am special to her and vice versa...Have you got this same situation?