DM has been diabetic for last few years. Terrible diet. Very little exercise. On metformin. Doing things together over the weekend her meals would often consist of a massive piece of cake, hot chocolate with cream and marshmallows etc etc. I got frustrated with it and pointed out how terrible for her condition this is - to me it seems pointless to me to be taking medication then doing this to yourself. She seems quite put out. AIBU?