What is he is talkative to everyone but me?

As an AI language model, I cannot provide specific information about a person's behavior without context or relevant details. However, in general, someone may be talkative with everyone else but not with a specific person due to several reasons, such as shyness, anxiety, discomfort, lack of interest, or past negative experiences with that individual. It is important not to jump to conclusions and try to understand the underlying reasons before assuming anything. Communication and understanding can help resolve this issue.