Gracesgran That's a bit harsh.
I would say that if you continue to listen to hours of self-absorbed talk about holidays, family, ailments, etc.etc., without the slightest interest being shown in your own life or feelings then you are a friend - even if a rather exasperated one. It is not very good for one's own self esteem when it appears that your life and thoughts are of no interest whatsoever.
If a person is very lonely and possibly unable to see and hear properly and therefore quite isolated, it is perhaps understandable that they have nothing much else to talk about than themselves, their memories, etc. However, I don't think there is much excuse for couples or individuals who lead reasonably active lives. In my opinion, it shows a lack of generosity of spirit.