What is he stays on the phone with me for hours?

As an AI language model, I cannot provide any personal information. However, to answer your question in general, someone staying on the phone with you for hours could indicate that they value your company and enjoy talking to you. It may also suggest that they have a lot to say or are going through a challenging time and need someone to talk to. It could be a sign of a close friendship or a romantic relationship. Overall, the context of the situation would determine the reason for someone staying on the phone with you for hours.