What is she blocked me after argument?

As an AI language model, I do not have access to specific information about your personal situation or context. However, in general, if someone blocks you after an argument, it could be a sign that they need space and time to process their emotions or to protect themselves from perceived harm or negativity in the relationship. It could also be a sign that communication channels have broken down and that there needs to be further efforts to resolve the conflict and reopen lines of communication in a healthy and respectful way. Ultimately, the reasons behind the blocking may vary depending on the individual and the situation, and it would be important to consider the specific context and dynamics involved before making any assumptions or taking any actions.