This sounds like schizophrenia to me. Particularly the weirdness and occasional paranoia. There’s no agreement on the causes of it, as far as I know. Whether AI can either cause it or push someone over the edge, I have no clue.

My brother has schizophrenia and is one of the most technologically inept people I know - both before the symptoms and currently. It is known to have existed well before modern computers.

Also worth noting that schizophrenia onset usually occurs in adulthood with and average age between late teens and early 30s. Later onset is less common, but known to occur.

Difficult to tell if this was a joke or autocorrect. Being forced to play a game (sudoku) as a loss, sounds… odd.

Seppuku is the Japanese word for a type of honorable suicide by cutting your own stomach in a Z shape (or at least attempting to).