Back when I first started posting on GC, I was a military GF.
One thing I hated the most was the fact that GFs weren't given as much info as the wives got...we were second rate because we were "just girlfriends". Luckily I made friends with another wife who kept me informed with developments whenever the guys weren't allowed to get in touch with us. Do you know of any other wives/girlfriends in your BF's unit? It was a nice support unit whenever he was gone.
And KR knows all about this -- temporary happiness, aka spa days, manicures and pedicures, Kate Spade, a new haircut? Anything to make you feel better!
Will your BF be able to send and receive email when he's gone? Instant messenger? If so, you're going to be a maniac checking that inbox regularly and online at weird hours depending on what time it is where he's at.
PM me anytime you like if you want to chat!