My brother is in the army as well. I agree with lisamarie about it most likely having something to do with being deployed and not being you really. My brother and his wife now have five kids. He has said that he was going to leave her several times during his three tours of iraq. You need to be strong for that baby and if you truly love him then stand by his side through this and be there when and if he needs you because I bet he will. The military messes with your mind enough as it is but being in Iraq just makes it that much worse. As hard as it may be try to understand what he's going through and not take it too personally. Just tell him that you understand if he needs time alone. I don't knwo for sure where his head is at but I can almost garauntee he will feel differently when hes away from there.