Am I wrong to act this way towards him?

Well, thats good that you two aren't just all "You're cute" or "I love you" because a good, strong relationships have fights if you didn't have fights then it would all bottle up then one day you will blow up on him.. and it would be like you were too afraid to speak your feelings to him, then it wouldn't be true love, yes fighting with him when he is in Iraq will feel bad because he has a LOT of stress already, but you need to keep your relationship alive until he comes back to love you! Hope this may help you!