All addictions share one thing in common, which is that they offer some kind of emotional relief. If you really want to conquer an addiction, you have to deal with the underlying root of the problem. So what does this person get when they spend time with these micro celebrities? How do they feel about themselves? What is that thing in them that's hungry for this kind of interaction? And until you understand that and start to replace it in other ways like they're going to stay stuck.