Explaining Medicaid spend down to family member with dementia

My dad will be going into long term care and going on Medicaid. He has enough in savings to maybe last him 2 months of private pay. I explained to him in the past that he will need to spend down his money first until he is down to $2000. All social security and pension will go to the facility. He has recently asked about his checking account. I feel he would get upset that most of his money will be spent down. I doubt he remembers past conversations about this. Has anyone had issues discussing finances with a family member with dementia. How did you handle it?