For Soldiers/Veterans or Military families: My soldier is torn between the military & civilian life; what 2 do?

My fiance's deployment has been difficult for me. I will never understand what he goes though daily, but it doesn't minimize my pain and loneliness, nor the amount of time I spend worrying about him. I have tried to be upbeat & act as though all is good, but: Last night we spoke via instant messenger, & I finally admitted to him I have become depressed over the past 9 months that he's been gone. SHOULD I HAVE CONTINUED TO HIDE IT FROM HIM UNTIL HE CAME HOME? His term is up March 19th (in 2 days!), yet his tour is over sometime in May. He made the decision not to re-enlist in the military because of "his family and his fiance(me)". I know though, that he doesn't want to leave the military. So I told him that I love him so much that I would understand if he were to re-enlist. I'd rather live a life where we go to bed together every night, and at least be able to confide in each other on a regular basis, but I'm willing to let him go in order for him to continue this life he started before I came along; to do the one thing in the world he feels he's good at. I WANT TO MARRY HIM, but I'm not sure if I can handle another deployment, JUST BEING HONEST. I am proud of him, I support him and his sacrifices, and for those I am grateful. He won't come right out and tell me he's torn, but I know it. Are there any words I can say that would comfort him? From a military standpoint, what does he need from me? I just want to make this deployment easier for him, we'll deal with the rest when he comes home.