tell her to fuck herself - you are over in iraq bustin your ass for her, her family, your family, and the rest of the country and she can't stay loyal? you're better than that man (i dont think that any girl "accidentally" passes out in a dude's bed, etc etc without doin some shit)
How can she be good to you if she's doing THAT? You KNOW she's fucking them....unless you're a blind, deaf moron. Dump her.
have you seen the pathetic statistics of how many military wives/girlfriends cheat??? seriously dude, if you have the remotest inclination that she is - and i think you have all the right to think so - i'd dump her... i obviously don't know you, your girlfriend, or the entire situation - but it sounds like she's cheating...which is real low there are plenty of other women back home once you get here, too... are you going to be going back? this is a double-edged sword really. because im sure having a girlfriend/wife back home is very comforting to think about...if you feel it is worth it maybe you should just talk to her about it.