"Anger is cruel and fury overwhelming, but who can stand before jealousy?" -Proverbs (forgot the verse)
“Love sees sharply; hatred sees even more sharply; but Jealousy sees the sharpest—for it is love and hate at the same time.” -Arab proverb, allegedly
“Jealousy is the injured lover's hell.” -Milton
I had never really felt prolonged jealousy until the last few days. It's everything I'm seeing quotes and writings describe: conflagrant but tiring; empowering but embittering; involuntary and unsatisfying. It's been nice reflecting upon the effects, and I can say that the alleged Arab aphorism above is absolutely accurate.
Edit: Replaced proverb with aphorism to make the assonance all but assured.