Sometimes when two people start dating, they may discuss what past relationships they had and how long they lasted. Sometimes you can get an idea of
If you're nervous that there may be a misunderstanding, you can always ask him again to make sure you haven't done anything to offend him. Sometimes when relationships start off great right off the bat, feelings can fizzle just as quickly. It can be very nerve-wrecking if you're the one who wants to continue spending time together, and the other person is the one who disappears.
Aside from checking with him one more time that he's not upset at you, all you can do is continue to give him his space as you've been doing and see what happens. Try to keep yourself occupied and busy so your life doesn't feel empty without him and hope for the best. Good luck.