No matter what we are talking about, she can find something to zero in on that is gloomy, or something bad that might happen, or someone else she has heard about that something sad happened to. Etc. It doesn't matter what we are talking about - she simply seems unable to stay on a cheerful topic for very long. I don't think she even realizes that she does this, but it really wears me down to the point that I have to brace myself for our visits. I don't think you can talk your way to being happy, but this certainly isn't helping her outlook at all. Can you help me understand why she might do this? How can I help her?