He is a different type of guy then you, who does not express his feelings in warm ways. Does he enjoy your emotional expressions? If he does then things are slightly easy for you. Try to explain him that it is your internal desire and you are feeling extremely uncomfortable with out it. Keep on reminding him the same. Express yourself exactly the same way you want him to express and keep on giving him an example. You may honestly tell him about your leaning towards a guy who shows such care and concern. This may take time but your continuous efforts in this direction may give you some results.