You don't mention how old he is, but it really sounds like he could use some help around the house.
I feel bad thinking of him living that way when he sounds like a perfectly lovely person.
After my uncle died, my kids and I went to visit and stay with my aunt. My uncle had been ill for a long time and she spent her days and nights tending to him. I was in shock when we got there. I wasn't prepared for the condition her home was in. It broke my heart. She hadn't been able to bear washing any of her husband's laundry or the sheets and blankets that had been on the bed when he passed away.
I set to work.
My sister and brother-in-law had gone to Oregon as well to see a new grandbaby and they weren't all that far away. I called them and they came over. They extended their stay and my sister and I cleaned the inside of the house and my brother-in-law bought lumber and repaired her porches that were completely unsafe. I went through all her mail that had piled up and helped her get her bills in order and paid.
My poor aunt just needed help and she wasn't the type to ask for it. She knew she hadn't been able to keep up with things so she wasn't offended in any way.
When I go stay with family, especially elderly relatives, I always do things to help them out while I'm there. I like keeping busy and it makes me feel good to do it.
If you're only there for one night, you just have to enjoy the company and appreciate the intended hospitality. Maybe extend your stay to help out with at least the kitchen and bedding.
I wouldn't lose touch with a family member who obviously is trying to be gracious to you. Life is too short for that.
Best wishes.
North Carolina is beautiful. I have family there.