When you’re taking to someone …

Do you usually talk all throughout the day through text/calls. I’ve been talking to this guy for a little over a month now and today for some reason his communication is a little different. I haven’t heard from him in over four hours obviously we’re not exclusively dating at the moment but it’s a work in progress. I’m just wondering if he’s losing interest. Yes I am probably over exaggerating about it it’s just I really like him and like to hear from him throughout the day and I usually do but today just seems a little different. I don’t want to keep texting and calling him Because phones work both ways and not only that I don’t want to seem too clingy and attached. But it’s already 8 o’clock and I’m probably going to bed soon and would like to hear from him before then. But again I don’t want to come off annoying.