How Could You?

How could you do this?
Do this to ME, after all I've done for you.
I understand how I could screw up,
But you were all I had to hold onto.

How could you let me fall?
Fall so far from the ground I stood upon.
I do this s**t all the time,
But you were innocent all in all.

I needed something to hold onto,
You were what that was.
Now I don't know what to think,
You were where my heart once was.

I've seen so many good people,
Turn bad from bad things.
That happened to me a long time ago,
Now for you I cry tears.

You were my innocence,
My heart, my soul, my everything.
But now that has all just flown away,
And I'm left with one more thing to say.

...How could YOU....?