The idea of introverts and extraverts being distinct groups of people with completely different neurological responses to social situations is a largely false one, created by self-help woo merchants to unhelpfully pathologise the feeling that EVERYONE has from time to time that they want to be left the fuck alone.

You know what? It's a normal, neurotypical part of life as a homo sapiens to want to be by yourself sometimes. And equally, it's a normal, neurotypical part of life as a homo sapiens to want to socialise sometimes.

We're a weird species like that, the way sometimes we want something and other times we want the opposite.