If memory serves me right, after she had her stroke she lost her appetite for robust tasting food and took on a robust liking of sweets, correct?
She had dementia, (actually, it was thought that she had vascular dementia with elements of Alzheimer's), and, a symptom of that condition was the development of a pronounced sweet tooth, (which was something she never had - she used to like all fruit, especially tart, sour fruits - gooseberries, red currants, black currants and cooking apples, and s on, as do I) within an extraordinarily short period of time.
The real tragedy is that she was very adventurous; she loved to travel and explore the culture (food, art, history, music and so on) of the places she had visited, and would eagerly sample new dishes (or cuisines) whenever she came across them, especially if they had been strongly recommended by locals.
Anyway, she also had cardiac issues (a few stents and a pace-maker), high cholesterol and blood pressure, and was on a veritable cocktail of medication for almost two decades before she passed away.
And thus, she lost her taste (and liking for) spicy or strongly flavoured (unless they are sweet) foods. Which meant a choice of either cooking a special dish separately for her if we were treating ourselves to something flavoursome, or joining her in the bland foods she had come to prefer.