Why is he not talking to me?!

So my boyfriend asked me out the last day of school and i hvent seen him in person since, since he had been grounded until like a couple days ago. Ever since we had been texting it has been so dull and awkward, He cannot hold a conversation for whatever reson. Like he'd be like whats up id say something like, playing piano, at the airport, on vacation or something interesting and he would give me the same respne "cool". And when i say smthing he would say yeah. Its like he doesnt care and when im talking to him i'll ask him whats up and hed say nothing all the time!! Its been a month now and nothing is happening. I really dont want this realashionship to go to waste since ive done alot to make it work but it just doesnt seem worth it anymore. Sometimes in the coversation i would ask questions but i ask so many trying to keep the conversation going that i think i just come off as annoying. he doesnt seem to care whether we talk or not. I feel he just doesnt want to talk but the thing is he always texts me first and he texts me everyday, our conversations probably last like 6 messages. I am so confused!! Please someone tell me what I can do to keep this realashioship going communacation wise. The thing is imagine how things would be when we start hanging out and are face to face. How do I make it less awkward. When I see him in person I dont want any awkward moments. and plus we were fine face to face before we started dating but i havent seen him in person since so i wouldnt know if anything had changed. P.s : He is kinda popular and im worried im out if his league and he only want this realashionship for my looks and body cos im thinking thats all he wants. P.p.s : There was one time when he was flirting with me ALOT over text and I loved it but that was the only time... EVER!!!