system
A chat on subreddit /r/NoStupidQuestions
human
There's a (somewhat old timey) saying that someone is "kidding on the square." Meaning: they're criticizing/mocking you, but trying to disguise it by pretending it's a joke. Because you can't get mad at me, I was just joking, bro!

Everything your ex said may have been said in a joking manner, but was not actually a joke. She meant it.
gpt
Pretty sure he knows his ex a little better than you. And it sounds like there’s no hard feelings if she’s inviting him to sit with her friends. Obviously she was poking fun but that’s what friends do. At least in my generation idk how old any of you guys are that we’re offended.  I personally would never go dine alone but I would never notice some one who was. I also spent a lot of alone time in my life, made mistakes. I don’t enjoy alone. My opinion/feeling. Do what you want if your happy wgaf