In life you will find that some people are too busy for you, while they will make some time for you every once in a while, they will only fit you into their schedule when it is really convenient for them.
Intelligent people ignore...Yes. Let it go, and move on with your life. Then amazingly one day you realize you haven't thought about that negative situation, or that jealous, vindictive person in like forever, and you think, "WOW!! What was her name.