I find there's this weird invisible line with most people. They're all willing to talk and hang out and be jovial, but then once you cross the strange invisible

I find there's this weird invisible line with most people. They're all willing to talk and hang out and be jovial, but then once you cross the strange invisible line, they don't want to interact anymore. I'm not talking about something creepy, it's more like you've used up all of your in person minutes or something. Now you have to wait till next month before you can engage them again.