Hubby in iraq ?

my husband is in Iraq for the second time. every time when we talk on the phone its like i don't want to talk to him. i mean i do look forward for him to call me. but when he does its like. i don't know. it seems like he is pissed at me. I know hes got it hard over there, but its really hard on me too. i have a 15 month old and no relatives here. plus i got an eating disorder. i don't know what to say anymore. i told him that from now on he should just e mail me. that probably sounds mean but what else should i tell him. I can't just say yes and amen to everything that he say especially when i have important questions about bills and stuff. but every time when i do ask him about the bills and other stuff he just cuts me off. I am so freaking tired of it.