A Break Up?

Im not usually one to post on social media about personal afflictions or anything of the sort. In fact I normally think it's completely useless & an excuse to seek temporary relief. But right now, at 1:23am, I'm feeling particularly depressed & vulnerable as Im lying in my bed, crying. Earlier today I pretty much threw away my relationship. Granted it's only been a few months & we're still really young it still means a lot to me. We were in the middle of a break (a decision accredited to her) during which I realized how important this relationship is to me. Earlier in the week she told me she wanted to get back together & even though I was thrilled I wanted to make sure she was sure about what she wanted. Earlier today we talked about things & I brought up the fact that we're still really young and have our futures to think about with potential military careers & furthering our education. She felt as though I implied that I didn't see us having a future together. I told her that even though I was in love with her & that she meant a lot to me it was important to note that it's likely I won't be the only person she loves in her life. In general the whole conversation ended in her saying she was going to take some real time to think about everything. Even though I encouraged it at the beginning I'm feeling completely and utterly miserable. I want to hold her more than anything & just make her feel safe in our relationship again.