Unreliable

My friend was having relationship problems and asked me to write this for her.

You said you'd be there.
You promised me, You swore.
Yet, you're never able to come through
And I can't take it anymore.
It's undeniable
That you're unreliable.
You always let me down
When I need you by my side.
My faith in you is dead,
And you ask me why I cried.
It's undeniable
That you're unreliable.
That's the reason why.
That's the last straw,
I'm through with it all.
So this time, it's GOOD BYE.
It's undeniable
That you're unreliable,
And not even worth my time.