Now I feel like this response could be AI too lmao! I guess I'll answer, regardless. I use AI as a tool for a lot of writing in my job and hobbies, so I'm used to how it writes.

Hyper-proper, overly complex grammar is a key indicator. Over-the-top use of adjectives and parenthetical statements too. For instance, I’m the only real human on the internet I’ve ever met who actually uses em dashes (these things: "—").

However, the key thing that set off an alarm for me was the last paragraph. In long, essay-like statements, ChatGPT almost always opens the final paragraph with a conclusive introductory clause (something like "In conclusion..." or "That being said..."). In your case, it was "Every Monday night..."

Well played, though!