I am Roberto.

INTP

Best description of my personality type that I have found in a long time:

The problem is that INTP’s live in their heads. Reality to them is the models that exist in there, the outside world is the ghost. When you speak to one it is voice coming in from that ghost world, the message is processed according to the internal model and a response given. The INTP will not notice that dust on the shelves for months, until that becomes the subject of focus, then he will see the dust only because it is the focus. When the focus changes, the dust will cease to exist.

What you have to do is get him to focus on you and be sure that he is doing that. Most of the time he will have not have a conversation with you, but with his internal model of you. Thus he will not be picking up cues to your emotional state and seem detached, he is detached.

The fact that he is showing interest in you at all is a good sign. Perhaps its not you, but I would suggest you become more touchy/feely. Nothing like someone placing a hand on your arm etc to drag the attention back into the real world away from the internal world.