CALLING ALL MILITARY COUPLES

So my boyfriend told me today he was thinking about joking the army or marines because he life here isn't going anywhere. I told him I support him but how do you guys handle the distance? Are there non combat jobs with the army anf marines? We plan on talking about it in person, I told him we need to talk about it because I want to understand what he wants to be doing and because we need to practice talking more rather than just texting. How do you guys handle your man or girl being gone? Any advice on what I should say or ask him about? Any help is greatly appreciated