Allow me to be honest and open with you. Sometimes as students, we may write too much in what we see around us, and that can be detrimental sometimes. before you start assuming things, think first before you do or say something that you will live to regret. For me, i think your teacher is just being a little concerned about you. It's not that he has an interest in you, am sure that would come as a shocker to you, he may have seen some potential in you and he is just finding a way of bringing it out. I guess him being a little aloof with you than other students, could be because he does not want to make you uncomfortable or scared. you need to be a little open minded and don't be too shy, you could be missing out on something big thinking of stuff that is not likely to even happen. That is the mind of a teacher, theirs is to watch, analyze and learn their students minds. So don't be afraid watch and learn also.