I know of a case which unfolded in exactly the same way. A sister in her 90s who was bed ridden had visitors only to leave magazines with her and then shoot off... i used to go and sit with her once in a while, usually once a month, just to have a chat with her about good old times, how she used to ride a bike to do the ministry in the late 20s, how the building across the road was bombed in the 2nd World War and they put up an ugly block of appartments in its place which soon filled with poorer teenage, one-parent families, who didnt discipline their children and how she saw graffiti start creeping into the area, and a general decrease in the prestige of the area. It was fascinating.
I'd always end up sitting there for a good 2 hours, just listening to her and sharing my own experience with her. She used to appreciate the magazines, but got really get upset that since people don't see her anymore at the Hall, they can't be bothered to come around for a chat or drink. Later, a program was put in place where an elder would visit an older one in the congregation, but obviously, due to its programmed, scheduled nature and not being done out of genuine concern, it soon fizzled out... The sister is still alive but has moved to a city further up the country...