A man can put up emotional brick-walls in relationship for certain reasons, especially when he has misgivings about the relationship.
Well, if you are worried your man seems unemotional, here are possible reasons why;
1. He fears you won’t reciprocate
If it’s at the early stage where you are only just befriending each other, a man could be forming hard guy, clamping down on his feelings for you in an attempt to a get a little more clarity. He’ll first want to be sure that you like him back or that there is, at least, the possibility that you can be convinced with a little more wooing and show of affection.
Until he gets a clear green light or feels that the odds of getting you favour him, he may continue to keep a lid on how he truly feels.