If I were you I wouldn’t call or text every day. YouYour going to wind up scaring him away. I think he likes you but not as much as you like him. He doesn’t want a serious monogamous relationship with you or any other girl right now. This doesn’t really have much to do with ADD. You seem to be making excuses for the fact that he’s not as attentive as you want him to be. But if you want to keep him around don’t text as much. Also don’t always make a joke or bring up the fact he hasn’t got back to you. Eventually it makes the person uncomfortable because you keep bringing it up.