It means he is a technology freak, Its your choice if you want to date the guy.
Wait and see... if he does facebooking so that he doesn't have to text you... it's a big worry, if he is facebooking but still text you, it's a question mark. If he doesn't move from texting to calling, it's your time do you want to wait?
I personally think that a guy who is interested will find his way to you, even if it may take a while for him to get to you (for some of the shy one), but it is NEVER the other way around...
If you met just a week ago and never saw each other again, you can't jump to any conclusion.
When we love there is no reason to ask why
Nothing wrong with your intuition.
Until you ask him why. I would not worry.