While I wouldn't blanketly make a statement that if someone wants time off from dating that they want out, it may be the case. I think there are other valid reasons for this but that being said, giving it time and him some space will reveal the truth of the matter. If he really just wants space and some time for now, he will be back. If he really wants out eventually things will go that way. In either case, if you're too insistent or impatient with it, at worst it will drive him away and at best it will make it harder for him to get past the time he is in.