> Your partner might see a therapist, and because of the nature of therapy, might be nudged into blaming you for all their woes. What about the possibility tha

> Your partner might see a therapist, and because of the nature of therapy, might be nudged into blaming you for all their woes. What about the possibility that the depressed person might have suddenly stopped seeking help from their therapist/ stopped taking their medication? That seems important to mention in your list-- IIRC at least the latter is actually a symptom of some types of depression.