Am over reacting?

My boyfriend is currently deployed, which it's over sort of. He can't make it home due to the plane breaking down so he is stuck halfway. I already feel left out because I cant make it when he gets home(we live in different states). He was suppose to leave the halfway point yesterday but because the plane broke down he can't I told him to update me on what's going on, he agreed. This morning he tells me good morning which I responded then asked him how he slept. No response, which he did get the message. 3 hours later I asked him if he was mad at me. He said sorry he had phone calls then still never answered my question. I get home from work I let him know I was home. He tells me the guys rented a vehicle and are going into the mountains..... ok? So no update no nothing. Haven't heard from him since. I'm extremely upset. Hes normally pretty good with keeping in touch but since he landed the day before yesterday it seams like hes shutting me out. I know hes not cheating so I'm not worried about that. Am I overreacting? Am I wrong to be upset?

Update: Thanks ladies for your advice we talked later that night. He didn't realize that he was shutting me out. He apologized.