Some guys, not all -but some - get into their twilight years and are single. They need a partner, just someone to be around. They meet someone half their age who takes an interest in them and suddenly the world isn't a grey drab place anymore. It's filled with vibrant colour! Advise your friend to step outside the relationship just for a minute and look at it objectively. You always get a better perspective outside the box looking in than inside the box looking out.