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I thought the "insulated bubble" part were enough to imply he was also jaded.
My comment is what came into my head when I read it. Sorta like an honest Tinder profile summary.
I think people groaned at it because a) he walked himself into a well-detested cliche b) the article was rather disinteresting.
*Said in Miranda Priestly's voice* A rich white dude in his 50s has casual sexual relationships with younger women? How original.