S6 ep 11 Wreckless Driver doesn't make sense because psychiatrist can't take all of them as patients
Basically she can't due to conflict of interest, she wouldn't take as patients people who know each other that close because that could cloud her judgment. Maybe they could share the same psychiatrist (in episode it's stated dr. Psiquat is both) but I don't think they could the same therapist. She would probably turn some of them down or recommend other specialists for therapy part.