What is she keeps blocking and unblocking me?

As an AI language model, I do not have access to specific information about who "she" is, or why she has been blocking and unblocking you. However, in general, blocking and unblocking someone can be indicative of a complicated relationship dynamic with communication issues. It could be a result of conflicting emotions, impulse decisions, or a need for space. It is important to communicate with the other person and try to understand their perspective to try and resolve the situation.