Write to Life?

Many of the songs I write have to do with problems in relationships and the difficulty of communicating. . .which by definition is a relationship issue.  I seemed obsessed with the idea.  Relationships have always been struggles for me and I used to think that writing about them would help.  But time and experience have given me cause to question that assumption.  At least it isn't apparent to me whether writing has actually helped me be a better husband, father, son, co-worker, parishioner, etc.  But still I write.  I'm compelled to and judging from the hundreds of thousands of blogs out there. . .I'm not alone.  Writing does seem to help something.  But what exactly?  Is it simply the necessary first step for rational beings?  That is, do we have to struggle with concepts and our symbols for concepts (words, pictures, hieroglyphics, etc.) before we can actually change behavior?  It seems that's just the way we are designed, so there's nothing wrong about struggling to understand and writing. In that sense, writing simply demonstrates understanding.  So maybe the trouble is that we allow ourselves to be satisfied with simply understanding how to be a better person.  That is, we succumb to the tempation that having written about something is equivalent to actually living it.  But we all know, in our better moments, that's not true.  If I don't live as well as I write. . .which I don't. . . then I'm a hypocrite.  And no one likes being called a hypocrite.  Conversely, if I don't write as well as I live. . .well, that doesn't matter much at all.