Unhappily married

Lying awake in the darkness,  trying so hard to see, .. feeling trapped in this blackness tho I long to be free.
Contemplating the shortness of each natural life... unhappily married,  as husband and wife.
But I've been living like this since I was 16...and still nothing has changed,  its the same old routine.
All along, for some time,  your heart has been stone.  But the fight to stay married , I have battled alone  
I've tried so hard to prove  your accusations are wrong ..
But im so tired of trying.. ive fought u so long.
And all that I've given,  you've taken in vain.
And you don't even care that our son is in pain.
So many times hes woke up in the night ..
To the repeated echoes of the same old stupid fight.
Without excitement or passion , or Heavenly bliss,  life's just too short to keep living like this.
And up to this point , I've been pretty tough.
But I have to admit it , lord I've had enough  
I beg u to stop but you couldn't care less.  No concern for our son whose too young for such stress.
You don't stop and think , you just fly into a rage.   Don't you remember when you were his age ?
We should cherish our lives , and treasure each day... not wallow in misery as time ticks away.
If you really don't know "ME" after so many years,... still full of bullshit,  mistrust and fear,
If you cannot grow up and let's get on with our life... then there's really no point in me being your wife.  
You won't know what you had until you ain't got it no more...
But it's too late, im leaving. I can't do this no more.