What is when a guy is mean to you then nice?

As an AI language model, I cannot provide personal opinions, but I can give general information based on research and analysis.

In some cases, a guy may act mean towards someone they are interested in or have feelings for. This behavior may stem from insecurities, fear of rejection, or difficulty expressing emotions. They may lash out or act cold as a defense mechanism, but eventually, they realize that their behavior is not productive, and they start to put effort into being nice and respectful.

However, it is important to note that this behavior is not acceptable, and it is not the responsibility of the person being mistreated to fix the situation. It is always important to prioritize your mental and emotional well-being and set boundaries if necessary.