What are your thoughts on this sort of personality over fifty?

A Facebook friend, whose gender I will go out of my way not to mention for fear of being blasted on here, is fifty-six and I’ve know them for three years. Living in Los Angeles, they are obsessed with the famous like mostly movie stars both current and deceased. Each morning their Facebook is filled with birthday and death announcements of actors who were born from the 1800’s to the 1980’s complete with photos of parties, affairs, Oscar speeches and provocative poses. It’s my opinion that it’s an obsession. This Facebook friend has never been married, retired early and their parents are admired greatly with pictures of them as newlyweds in black and white up until today. I have nothing against movie stars, I am interested in the British royal family but those things are very minor in my life. I’m trying to figure out why they’re doing this and why the major importance of it all? Any ideas? And let me add this: it is not a criticism. It’s merely a curiosity. I like this person a great deal.