What is the overall tone of this poem?

hap
by thomas hardy

if but some vengeful god would call to me
from up the sky, and laugh: “thou suffering thing,
know that thy sorrow is my ecstasy,
that thy love’s loss is my hate’s profiting! ”
then would i bear, and clench myself, and die,
steeled by the sense of ire unmerited;
half-eased, too, that a powerfuller than i
had willed and meted me the tears i shed.

but not so. how arrives it joy lies slain,
and why unblooms the best hope ever sown?
—crass casualty obstructs the sun and rain,
and dicing time for gladness casts a moan….
these purblind doomsters had as readily strown
blisses about my pilgrimage as pain.

reflective

fierce
pessimistic
vengeful