Should I take advantage of the little time that we perhaps have and let it flow or do I leave this once and for all?

I am in the process of being recruited for the air force officer course in my country. I started this process by myself. In January of this year I met a boy (we met again since we were colleagues at the university) and we started dating, so from the beginning I told him about the possibility of him going or not going to the officers' course and that if he was That's how I would go, however, in the time we are together I would be an excellent woman (faithful, affectionate and all that) he promised the same and we have been like that, he asked me to be boyfriends as soon as we started dating (I told him we had to get to know each other more but what if he wanted it to happen), since then we have been "together" but he has not mentioned anything else to me about being officially a couple. Honestly, I ambiguous about the situation because I can leave and that but I don't feel completely comfortable being the "friend"
Should I take advantage of the little time that we perhaps have and let it flow or do I leave this once and for all?
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