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My sister and I were talking about this topic.
If I had to describe my relationship to Mr. Blackfirewhitefire it would look like this:

And I thought I could improve on our relationship if I could just remove that bottom dip -the down sides, the arguing, the passion. But then again removing the passion would cause the upward spikes to be gone -all the fun and excitement, all the thrill. Then I'd be left with a graph more like this:

Gulp. That doesn't look too lively.
Okay, I'll keep the passion.
There is always a flow going on. The feminine "waters" get aroused, this causes the masculine "waters" to get aroused and he gives to her. And what do we get?
All wet.
Just kidding.
But really, this is the story of life. Earth's fluids evaporates back up to the heavens. The heavens get aroused and sends down rain -sustenance. A child cries tears to her mother, the mother speaks (moisture from the mouth) soothing words and comforts the child -she sustains her. A student asks question to his teacher, the teacher gives his response (moisture; which is why some say its better to hear a great teacher face to face rather than reading his teachings). It goes on.
I suppose all their EKGs would also be up and down and leveled; like the first graph. showers, thunderstorms, and rain; light words, shoutings, conversations.
I am NOT condoning arguments here. I just don't see any way around them (yet).