What strikes me as odd is that, the second time I mentioned it, he seemed to have no memory that it came up before. Maybe when he is tired or distracted, he will not only respond inappropriately, but also not remember the conversation later. My part will be to make sure he can concentrate fully on what I'm saying, when I have to tell him something important. His part, or what I ask of him, is simply to understand that I have an illness, which has a set of symptoms that are often hard for me to manage.