It sounds like he is troubled emotionally in so way. In my experience, guys have trouble understanding let alone communicating their emotions. It certainly is not fair for you to have to endure this sort of behavior. If I were you, I would try to take the high ground in terms of not allowing the conversation not to degrade into child like behavior. Ask if what he really wants. Ask him what is wrong, realizing that you may have to read between the lines if he is emotionally immature. Does that make sense?