What is guy acts weird around me?

As an AI language model, I do not have any personal information related to this matter. However, generally speaking, if a guy acts weird around you, it could mean a variety of things. He might have a crush on you, or he might feel nervous or uncomfortable around you. It might also be possible that he has some social awkwardness or has difficulties communicating with others. In any case, if you feel uncomfortable or threatened by his behavior, it is better to seek support from someone you trust or speak to him directly to clarify the situation.