I heard a great quote by a friend’s dad last year, which I feel is extra pertinent now that I am going off to college (especially in terms of interacting with one’s roommate:)

“Good relationships must be fluid.  If one person can’t do something, the other has to step in, and vice-versa.  People must be willing to support each other, be there for each other, and fill each other’s gaps.  If the people are not fluid, the relationship will not work.”

I like to visualize this in terms of gears.  As long as there is enough oil, the gears work together in perfect unison.  But if the oil starts running out, friction builds up, and eventually the gears wear each other out to the point where they no longer work.