Lisa,
After all the replies no one appears to have given it a thought that at 72 the guy may be totally lonely in a now loveless relationship he may do nothing about your contact but at least he feels he's found someone who's interested in him ! Perhaps that's all he needs, in reality the CDing part maybe irrelevant !
It is hard being in a relationship like that, I sometimes feel my CDing is being used as an excuse to cover up lack of deep feeling anymore !