What should respond to someone told me that he miss me the most It's silly, but I can't think

Well if you miss him too then you could respond with something like that lol

If you feel the same way then you should explain to them that you miss them as well. But, if you don’t, you should try and let them down easily. Maybe say something like, “Thank you for being honest with me about how you feel, however, I don’t feel the same.” Hope this helps.

Yeah the answer would be d not c