I would have to say being around friends and family helps out a lot. It's a great support system so that you are never completely alone. Also, keeping yourself constantly busy helps at times. It may be hard to believe but after they are gone for so long (for several tours) you eventually adjust and kinda get use to them being gone. Not that you don't miss them, though
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Good luck with your relationship though. Being a military wife/girlfriend is far from easy.