Stunned. Ambushed. Traumatized. These were the words that Jeffrey, 76, used to describe how he felt when he stumbled upon his therapist’s notes after logging into an online patient portal in June.

In her therapy notes, she writes in detail about Quintana’s multiple hospitalizations and trips to rehab, the disconcerting phone calls when Quintana slurred and ranted, and how Didion’s work ...