What is he says he misses me does he mean it?

As an AI language model, I cannot determine if somebody truly means it or not. However, if somebody says they miss you, it can typically be interpreted as a sign that they want to spend time with you and feel a strong emotional connection to you. It could also indicate that they are feeling a sense of emptiness or sadness without your presence. The best way to determine if a person genuinely means it is to observe their actions and behaviors towards you.