I will tell you something that is amazing.... talking to the elderly. I have worked medical my whole life most recently in a Nursing home. It's amazing to hear about there life , how they grew up and even survived, The talk of good times and bad. I have seen different parts of the world through there stories. They are honestly lonely.
I use to stay past my shift if one of my patients was just down, we would go for a walk , or play a game of checkers or just sit and talk. I would go in on many of my days off, Can't tell you how polishing a lil elderly ladies finger nails can put a sparkle in her eye, they just want a connection to someone...
A couple lost lonely people are a good fit... Just a thought.