You seem to be 2 of the best and closest friends I've ever seen, and since you've known each other for so long I was wondering if there was ever a time when one or both of you were seriously mad at the other, to the point of almost no longer being friends. And if so, how did you reconcile?
I too have noticed the light bickering stages that never seems to escalate. Try hard as I might to document these rare occurances. It doesn't seem to happen often or at all... (the attached file is a draft of something I have been working one called Rhett verses Link)