I think the most important thing, Eva, is to realize and accept that you may never know what happened with this guy (if he doesn’t call you back, that is).
I’ve been on the receiving end of blowoffs before (heck, who hasn’t?) and they’re not fun. You suspect it’s the end of the relationship, but you want definitive closure; you want to find out what happened so you can close that chapter of your life and move on to the next. And when you get blown off, you don’t get that closure, because that person doesn’t show up again to tell you, “Yes, it’s over, you can move on to your next relationship now.” A part of you doesn’t want to believe it’s over. It can feel like a blow to your self-esteem (“What, wasn’t I good enough for him/her? Why would she/he hurt me like this?”).
But you may never get that closure from this guy, and all the chasing after him and all the phone calls in the world won’t get you that closure. All it can do is prolong things for you and end up hurting you more in the end. What his reasons are will remain his own; possibly he wasn’t happy in the relationship, possibly he got scared by the intimacy, possibly he bailed for reasons completely unrelated to you as a person. You’ve seen that calling him will not result in your getting any more information; it sucks, but it’s how he’s chosen to handle the situation. If he wants to get ahold of you, he will.
My advice for you is to, if he doesn’t contact you within the next day or two, emotionally sign off on this relationship; he proved that he’s not a compatible partner for you and now you can move on to someone who can be. It’s not easy to do, but hanging on just hurts you more.
FWIW, I’m sorry to hear things worked out like this – I’ll buy you a drink at next week’s ChiDope Lunch Bunch gathering. (O’course, it’ll be a Coke 'cuz we all have to go back to work afterwards, but it’s the thought that counts, right?
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