There is a thing that happens to people who are Very Good With People for a period of time, in that they eventually (almost) always end up learning the lesson that maintaining pseudo-faux closeness comes at an unbearable cost to their social lives and fulfillment.
Usually this creates a period of deprioritizing certain people (who sometimes, in retrospect, they realize were the people they wanted to be closest to) and having to sorta prioritize others.
Certain industries (venture/tech) definitely uniquely enable this but I feel like once you describe it everyone knows someone going through or who has gone through this arc.
I'm not exactly sure if i'm believer in Dunbar's Law but it's probably more directionally correct than not as life gets complex and you figure out the few things that deeply matter to you.