Do you and your spouse/partner/SO/best friend have a secret signal to communicate that you need to be rescued? Or that you’re ready to go? Or that if something isn’t done immediately, you’re going to go insane and take the other along? If you’re going to be in a potentially unpleasant social situation, do you work something out ahead of time, or do you have a standing plan?
Or are you really mature and honest and stuff like that?
I don’t know if we so much have a signal as I know when he wants OUT! NOW!! While my husband isn’t antisocial, he doesn’t much like big groups, especially when he doesn’t have a lot in common with the majority - for example, DopeFests. When we’re out with another couple or two, he’s great. Of if we’re with folks he knows or in a venue where he’s comfortable (like around other sailors) there’s usually no problem. (Me, I can usually find someone to talk with about something.)
Anyway, I can tell when he’s had enough. And I usually take the initiative to seek out the hosts or just let everyone in general know that we’re leaving. Since we live in the boonies, I can honestly plead the long ride home and an early morning. Of course, just to keep everyone off balance, it’s not always that he’s ready to leave - I’ve often gone to him and said “I’m ready to go.” Then I’ll make our apologies if it’s a group of my friends.
Sometimes we decide ahead of time what our limit will be - either in terms of a specific time or when a certain individual makes the occasion less social (for example, a BIL who’s had that one-beer-too-many.) It was easier years ago: “'Night, all - we promised the babysitter we’d be home by 10!”
Do you have a clever system to extricate yourselves from situations without seeming all boorish or antisocial? Do tell…

so, it’s not really secret from my family but it is still quite useful.