<human>: Can you provide a brief overview of the text?

My boyfriend and I have been together for 3 years and he recently joined the Airforce. Before he left we would always talk about how after he was done we would get married, and not just me talking about it, he did as well. His mom and I went to his basic graduation and it was wonderful to see him and we spent as much time possible with him but it felt slightly off, we assumed just because he was still in airman mode. Then he left for tech school and we talked and he told me he found a ring and showed it to me. It was beautiful and I was so excited. A few days after that he asked me if I was having doubts so I told him of course I've had a few but I know that I loved him and that trumped all the doubts I had. And he told me that he was having a bunch of second thoughts and thinking maybe it wasn't a good idea anymore. So I told him alright just to let me know what he decides, there wasn't much else I could do. Then a few days later he tells me that he has decided. If he is going over seas we will get married, but if he is staying in the U.S. we will just stay dating and I can move there with him but not live on base with him so we can still be around each other. This seemed smart and a good solution. So I'm excited again and ready for what may come. And I asked him if he was going to change his mind again and he said no he wouldn't. Well now last night he starts telling me that maybe he is wrong and reconsidering everything again, no longer telling me he loves me, starts saying how I haven't matured much, that I never look at the bad things that could happen. So now I'm feeling pretty bad about the situation and not really sure how to handle it. I told him I'll wait for him to decide because he is worth the wait, but it's killing me inside and I'm not really sure how to handle the situation and show him how I really feel with me being all the was across the country from him.
<bot>: Boyfriend and I were set to get married, he goes to the Airforce, changes his mind, says he wants to again, then changes his mind again. What to do?