Does it even matter?

Does it even matter,
The nights I waited up for you?
Does it even matter,
All the tears I've muddled through?
Does it even matter,
That I stayed up all night crying?
Does it even matter,
You were not even trying?
No it does not matter,
My heart is broken now.
No it does not matter,
The where, the why, the how.
All that really matters,
You left me all alone.
All that really matters,
Is that you are finally gone.