I know this is scary....
They're acknowledging the fear that the patient has and are also communicating hope by being positive.
Often our symptoms of mental wellbeing can make us feel lethargic, impair our capacity to communicate empathy, or trigger feelings of anxiety and loneliness," Miller says." These symptoms can also cause your partner to be codependent or even resentful.
The word that refers to focusing on the negative and expecting the worse would be pessimism.
hope this helps!