Long distance when one or more of you feel conflicted is generally bad idea. In my opinion moving out to be with her would be a bad idea too. I had an American girl move over here to be with me when things were rocky and it turned out shit.

Also I may have got the wrong impression here, but first you suggested some time apart and then only decided you wanted to be with her when you realised there was a possibility she might be moving away. That's probably worth reflecting on.