<human>: We've expressed for the longest time that we want to be a constant in each others lives. Recently we've been planning how we'd stay close while I'm in the military (to make money so that we can fulfill his dream of living out our lives in Japan- long story that doesn't pertain to what I'm needing advice for). I want nothing more than to give him the world and I thought he'd agree that getting married would be as natural and easy as breathing. He said, "I'll think about it. Okay?" He even gave me a time line: December. WTF? I'm so confused and heart achy. How do I keep my cool while I wait? I know better than to harass him about it. And a tiny coldly logical part of me says to break everything off now instead of dragging my heart around until I leave this summer. Both of us agree that long distance relationships don't work. Maybe it's self preservation but how can I allow my emotions to be war zone whilst I'm in one as well?

Can you give me the gist of the text in a nutshell?
<bot>: Long time bf basically just gave our relationship an expiration date. How can I help myself and him last past it?