I had a theory earlier that you eat more when you’re hungry for a long time. This one is sort of a parallel. Introverts elsewhere will know that we have a social tolerance level for every human interaction. It is defined as the amount of time you can spend talking to other people before you need to be alone and ‘recharge’. This tolerance level varies according to the humans you’re interacting with (it’s almost always longer with animals).
This need for recharge doesn’t necessarily come from being antisocial or boredom. You can be having an absolutely fabulous time with your friends and still have enough of it after a couple of hours.
This here is my Totally non-scientific Theory for this Tuesday: Your social tolerance level increases if you’ve been alone for a long time. Your batteries are just fully charged.