Lost, I'm glad to hear about the fun you had. It is confusing, but it definitely sounds fun.
You have to not have expectations and come to the realization that this could go either way. Seriously.
With that said, I think you should continue to play the flirt card. When you get home things will undoubtably change as the monotony of life takes over again. Keep having fun. Do things on your own. GAL!!!!! And STFU!!!! And most importantly start courting him again. When issues arise, act as if they don't matter and validate his feelings. At the same time get with a coach immediately!!!
This could be a crucial turning point in your story, but you have to take advantage of it, and be the change.
Me: 32 W: 29 T:8 M: 6 D4 S2 M - 8/2008 W is not happy - 1/2014 W wants D - 9/2014 W moved out - 11/2014 D filed - 1/23/2015 D'ed - 2/25/2015 Gave X the Letter - 11/10/2015