When doing certain actions for the first time, players are given a tutorial by Fennel. They may then explore the rest of the Dream World on their own. With the reopening of the Global Link site after the release of international versions of Black and White, players who had Japanese accounts prior to the reopening will be given tutorials once again. Players are also given the tutorial again when using a computer that they have not used for visiting the Dream World before. -Bulbapedia
One of these is obviously why the tutorial keeps popping up, look familiar?