She has told you exactly what she thinks you should do — you need to date other women.
Whether you like it or not she is in another country for “an undetermined period of time”. Neither you (nor she) should be waiting for the other. And quite frankly, based upon your post I feel certain she is not sitting there, on the other side of the world, “waiting for you”. Yours is a fantasy relationship. You’ve never even met this woman and, again, based upon her comments, you likely never will.
Bottom-line: Regardless of how much you think you have in common — unless you are only looking for a pen-pal type of relationship — I would strongly advise you to stop trying to see more complicated meaning in her remarks than what’s truly there.
She told you:
1) she doesn’t know when (or if) she’s coming back to the US
2) she told you to date other women, and
3) [u]she told you that you should not wait for her.[/u]
[i][b]How much clearer do you need her to be?[/b][/i]