What is he keeps blocking and unblocking me?

As an AI language model, I do not have any context about who "he" is mentioned in the statement. However, if someone keeps blocking and unblocking someone else, it suggests that there may be some ongoing conflict or issues between them. It can also be a sign of indecision or confusion on the part of the person doing the blocking and unblocking. This behavior can be frustrating and cause emotional distress for the person who is being repeatedly blocked and unblocked. It is important to communicate with the other person and try to understand the underlying issues to resolve the situation.