How do military wives do it? Will it out?

So trying to make a long story short, my fiancé got his license suspended a long time ago and got into debt. We met in my home town San Diego where he moved out with his parents from Hawaii. We have been together for a few years now. He hasn't been able to get a steady job since I've known him because the jobs where he makes money require him to have a license. His old job that he worked at for 6 years in Hawaii said they were desperate for people and were willing to hire him back without a license. That way he could have a job, pay of his debt and build and life and family with me. Problem is it was all the sudden and they needed him to jump on a plane right away and head out to Hawaii. Now I'm not moving out there for another month and a half because for now he is going to be couch hoping for a month until he gets enough money to get us an apartment and fly me out there. Fast for to Monday the 9th of this month. I came home in the morning and proposed to him. Reason why is because he wants to wait and buy me an expensive ring but I know I want to Mary him regardless of how much a ring is. I bought a nice wedding band for men and got down on one knee. He reared up and held me and said, "I wanted to do that dummy." He said yes and the next day, Tuesday the 10 (yesterday) he left. Now fast forward to this morning. I'm freaking out. I've always had really bad abandonment issues and I realized that what if he gets over me? What if he finds someone better? What if he feels distant from me? I faught with him over the phone at 2am saying he might cheat. He said he wouldn't and he is going to have to talk to girls because his friends will bring them around which made me even more upset and start crying. He said all of his best friends knew he was engaged and he wears the ring. I told him he might as well break it off with me if he doesn't think he will be with me. He said we wouldn't only break up if I fight with him for the next month and believe it or not that made me start bawling. I'm your fiancé, why would it be so easy for you to break up with me? It's like now that he's in Hawaii he doesn't care. I can't tell if I'm over reacting or what to do? I don't even know how military wives to it. We hung up on a bad note and we had to cut it short since I had work at 3am this morning. All I'm asking is what do I do?