I need advice about my husband?

I really need some advice from someone in the military. My husband's currently deployed to Iraq. I support him 100%. I'm always there for him, I send him packages, we don't argue, I don't nag. We have a really good relationship. However a week or two ago, he asked me if he could wear his wedding ring on his dog tags. He said a lot of men do that, and he wanted to because he was tired of Iraqi prisoners asking about his wife. Well I was inwardly kind of upset that he would not want to wear it, but I didn't say anything. I just said that he should just ignore them, and he agreed. Anyway a few days ago we were talking online. We had been talking online for about twenty minutes before he told me he had some bad news. He told me he'd lost his wedding ring. He said it had come off when he was showering, and it had fallen down the drain. He said it was probably from having lost some weight since being deployed. Of course I was really upset! That ring meant a lot to me, and I hope it meant a lot to him. I tried not to over react about it or yell at him over it, but now I'm thinking maybe I should have. It was just that 1. he didn't tell me about it right away, 2. he didn't seem that upset about it (I thought I'd lost my ring down the drain once and I was devastated but I took apart the drain to get it) and 3. he'd mentioned not wanting to wear it before due to the prisoners supposedly. I guess, if I am being honest, a part of me is also scared that he doesn't want to wear it because he doesn't love me or is cheating on me, and he just made up the drain story as an excuse not to wear it. That's my fear. So can someone just please give me some advice on what I'm supposed to be feeling right now? Thanks. I always keep the negativity from him, and I'm always positive for him, but this one has me really worried.