Why did it happen like this?

Why did it happen like this?
During our finest hour,
With barely a goodbye kiss,
Trapped now, in my dark tower.

I am happy for you though,
Watching you through my seeing glass,
You're on a higher plateau,
Without me holding you in the rotting grass.

Times have changed,
And I must move on.
My mind is deranged,
Through this new dawn.

So long as I still breathe, I will remember you.
So long as I still breathe, I will never say, "Adieu"