he wants to keep a distance with you. because he has a serious health problem.
but you try to stick him more with this action. "sending message every day
is there a danger about being blind for him? i have no idea how serious his problem is
then don't bother, that means there is a problem.
give him a chance to prove if he feels something for you. but you must stay away
think like that: you have some food in your hand and you try to feed pigeons.
don't do that ;) if it will happens, it happens