I really like him … so what should I do??

I've been dating this guy a few weeks now. We've hung out twice and have had a great time each time. Only growing closer and closer. Than all the sudden he stopped calling/texting and responding to my texts/calls. I last texted/called about two days ago (Sunday) with no response. I'll admit I may have been excessive with it (I called and texted a total of 5 times throughout the day -text 4 called 1). Did I scare him away by that!? He usually texts me every day and always asks if he can call me (which I thought was cute). I don't know if I did something wrong or if he's not interested (though I got the vibe he was). He hasn't said he doesn't want a relationship so I don't think it's anything like that. I just haven't dated in a while so I don't know if it's normal for a guy who likes you to not call/text daily (I'm used to them calling me a little too much.) I don't know … so I came to Glow!! Thanks everyone!!