I haven't been dumped since I was 20 years old. I don't say that to be a braggart, I'm simply telling the truth.
I was essentially forced to learn very early on how the game works:
Push and pull
People want people (very badly) who don't want them
People have too much pride and ego clouding their better judgment
Fool me once, shame on you, fool me twice, shame on me
And so on and so forth.