Or they're trying to convince themselves that they don't care, but actually, they do. I've been like that. It's only when on some level you reach a point that you really don't care, that you start to see how you obviously did care. For example, I can't be arsed with dressing nicely because no one sees me. This is in total contrast to the times when I liked to think I didn't care, but I'd still dress up to go out. Of course I cared. Doh.