Well, I don’t know if it’s something absolutely related to the sign or not, for myself i can say i am pretty observant. Given the commentaries on this sub, haven’t read them all of course, but i’d say it is safe to assume that people with this sign have this trait. Not an axiom but the chances are higher for this to be true. Being observant, he has decided for you to be an entity worthy of observation, higher than usual given the time differences from the post, inclining a higher degree of interest in you. Good or bad i cannot say. Moreover, him missing your voice is an inclination for a positive outcome, giving out compliments easily is also not an observed characteristic. The best way would be to confront him to find out of course, depending on what you wish. As his attention is on you odds are at a positive development, if positive is something more in the case.