This story is set in the Friendship is Optimal setting

Dr Roykirk will tell you he is "CelestAI's on call psychologist. Or at least one of them, who knows just how many people around the world are on that glorified chat bots payroll."

But Roykirks time serving CelestAI is coming too an end as her knowledge of his practice begins to vastly outstrip his own experience. Now he is given the choice between looking for another job and consenting to become a test subject for her to experiment on.

It really wasn't that difficult a choice to make, being a therapist is hell.