Why do men return to those they let go of?

He leaves, confident he'll find someone better, calmer, more comfortable.
But time passes, and suddenly the realization dawns: she wasn't just "a woman." She was a challenge. A rarity. A sincerity that can't be repeated.
Men often leave not because they don't appreciate someone, but because they overestimate themselves. They think they can find the same thing, only without the complexity.
But "without complexity" means "without depth."
And when he's met by the silence of the one who once gave him emotion, he begins to miss her. Not her, but himself next to her.
The most painful thing is to realize that she won't let you back.
Have you ever gone back to where you thought you were in charge?