An anecdote thats possibly similar to your situation (or possibly not, so take it for what it is worth)- My friend (no, seriously, this is actually my FRIEND) has a gf who went home to a city in a hometown far enough away that they did not get to see each other over the break at all. Apparently, her family was kinda smothering while she was home, so she was kinda quiet whenever they talked. Somehow, my friend leaps to the conclusion that when she gets back, she will want some "alone time," and so he planned to do something else on the day that she comes back to San Antonio. Well, lo and behold, this turns out to be the OPPOSITE of what she actually wanted.
My point (though it is kinda convoluted) is that somehow if you have been making all of the calls up to this point, it is possible that he came to some ridiculous conclusion that if you do not call, it means you want "space." Yes, he would be an idiot for thinking that, just as my friend was an idiot for planning something on the day his girlfriend came back.
Of course, that is just one idea of what might be going through his head; it is entirely possible that he has thought of something else that is equally ridiculous. Sadly, the human male has always been outrageously bad at figuring out what women want, and he probably has no idea he is doing anything wrong.
Anyways, good luck! I hope it is just another case of a guy trying to overthink (or underthink) things and coming to a horribly wrong conclusion!