Neighbours but strangers

Taking Rocky for his morning walk we passed an ederly woman pushing a three-wheeled walking frame. "You won't be seeing him anymore. He died. We had the funeral last Friday. It's better that he was put out of his misery". So matter of fact. Apparently devoid of emotion. Her husband and she would make such a fuss of Rocky each time our paths crossed. Then one day she said "I had to put him in a home. He was going up here" she tapped her head. I saw him being pushed in a wheelchair by her a few times, and he did appear to be physically and mentally deteriorating before my eyes. Nearly every day she would visit him in the nursing home. I don't even know their names, or how long they had been married. I only knew where they lived because Rocky had a habit of jumping over their garden wall and having a sniff in their garden. This is how we first met. Near neighbours and yet strangers. We go about our separate lives.