Yeah, sounds like the DM might have gone a "little screwey" as they say in Dr. Strangelove. On a more serious note, isolation, can lead to Depression.
Sometimes it is very difficult to have a "right view", when other pressures, such as finances, are weighing someone down.
Oof..that is unfortunate for your wife, her game, and her friend. YouTube, Instagram, or other social media stardom seems a fickle beast to me. Monetizing this fame seems even more of a fraught issue, to me.
One idea I have considered over the years is what if players were willing to pay DMs that started to feel under appreciated, and over worked in pursuit of their shared hobby.
Cinema prices vary from locale to locale,,but a $10-$20 donation per 4 hour session is about the Cost of a 2 and 1/2 hour movie.
Of course it is also the cost of a Disney + subscription. I think I am entertaining as a DM...but I'm not Mando level of entertainment. Besides, I want to keep my amateur status for when DMing becomes a (Zoom), Olympic sport.