Hello,
I think you might be overthinking it a little bit. You are totally free to do what you want, if you really clicked with her, you will probably go on another date with her after her training, after all, it's not like she's going away for two years. You seem to like speaking with her and I don't see a reason why you should stop. But in the meantime, you don't have to only wait for her, you can continue going on dates with other girls if you want. If it's gonna work out, all the better, if not, well, at least you tried. I think it would be stupid to completely cut her off if you're starting to catch feelings for her, after all, she'll be back in no time.
Good luck