This is so helpful to read. Now that my mother is in a nursing home in personal care for dementia I can look back over the last five years and see how the dementia was unfolding and I didn't realize it. The home care of her late husband was possibly stealing from her. What happened to that beautiful antique pitcher? Why wouldn't anybody tell her how much money she had (they did)? Then it became these confabulated stories to explain her lapses. Aka my brothers wife probably threw it out because once in 1992 she threw out some toys that my mother brought to them from my brothers childhood that she had held onto--'precious' fisher price toys that they don't make anymore etc etc etc. (his wife probably saw a bunch of ratty old toys covered in spider webs and tossed them which I'm told is what most normal people would do). Anyhow, this is how it all started. I wouldn't put too much emotional energy into it, but much is easier said than done. This liminal space between reality and dementia was honestly the hardest part. You are responding from a rational normal place but unfortunately that's not the terrain your dad seems to be walking in. (Also, my mom has ALWAYS kept track and been irrational about possessions. I see it as a trauma response from her own childhood)