A Tale Of A Thousand Years

Hate: intense dislike.
Love: an intense feeling of deep affection.
The key word here is "intense"

A thousand years is a very long time to hate someone, after awhile the emotions begins to fade, all that is left is a seething rage.
For Arthur, a thousand years is enough to fester his rage, a thousand years in darkness with one single goal REVENGE.

They say revenge is a dish best served cold but Arthur prefers hot, fire, brimstone for there is nothing as hot as the fury of a caged dragon.

........

The bookkeeper never knew her twentieth birthday will change her life for ever.