Relationship Question!!

Hi!! Wondering if y'all can help me out. I'm in love for the first time, and my significant other just had to go 4 hours from me. He will be gone for a while. I miss him so much! But I feel like he doesn't really wanna spend the time to talk to me. Every chance I get I'll send him a text or a voice message. & he always responds but I just don't feel like he really wants to talk to me. This is the best relationship I've ever been in. But right now I feel really neglected. Any advice on how to handle the situation?