Are my messages not getting through to him?

Me & my man both own an iPhone 6. He texted me like around 11pm. Then eventually he told me that he was in Alabama(he s in the army). He s like close to the borderline of Alabama. At first I didn't have a problem with the signal. Then all of the sudden whenever I sent a message it doesn't say "delivered" or anything. But my message is still blue. I don't know if he got my message but he sent me a question mark. Then I asked if he got my message. Again, my message is just sitting there it's not saying my message has been delivered. I even tried calling him twice. It did ring though. Is he not getting my messages?

He doesn't wanna talk