Why do Capricorn guys do this?

Thats just what they do my crush was like that I think Capricorns like to be focused on the business side of life and they find it really hard to express their emotions so he might be all flirty for a while but after a while he might think that he put too much effort into it and retreat back into this 'shell' (if that makes sense) and judging by your dp you're really beautiful so that might be even more for him to think about, its easier to keep it safe than jump in head first which Capricorn dont ever like to do they always yse their surrounding and people to see if its worth it and see if its something that is durable, they're not first-timers so the 2nd or 3rd time will be better but watch out they are quite blunt even though they have a nicer sense of humour (that doesnt immediately show but I know) and also be careful if you're looking for a fling then its a no no (depending on how serious he is) and just be sensitive to him he'll come around :).