First LDR, should I dump him?

Ok, so my boyfriend and I just recently started dating in college about a month before leaving for this summer. We were a bit of friends but nothing too much, we started hanging out more and then BAM! just went in for the kill and started dating knowing we were going to be apart from each other for about two months and a half. (Sorry for the unnecessary details but I felt they needed to be included to know the basics) Ok, So it's been about fairly a month and the LDR started running smoothly at first, text a few times and talk on the phone a bit (that's how we both are, we both suck at texting) but then we've begun to talk less and less phone and text included. I call him and he doesn't answer, then he responds or calls a few days later saying that he was hanging out with his buddies and just wasn't in the right state of mind to answer my call if you know what i mean. But it's been getting annoying and I am tired of texting him or calling him and him not responding. I want to tell him but I don't KNOW HOW TO because I don't want to be demanding. Either I'm a complete drama queen and taking his actions way too seriously and just being pessimistic or I'm right and should tell him something and if so how should i word it so it doesn't sound like I'm pointing my finger at him like a controlling girlfriend.