The first time I read this quote I was stunned at how true it was. It has taught me to let things go. The person you are angry with couldn't care less about your feelings, they already demonstrated that. Time to let it go, for your emotional and mental health. You'll feel much better.
Have you ever faced this dilemma? How did you handle it. Did you keep your anger, nursing it hotter and hotter or did you let it go? How did you feel?