Hello again Crazy GMan,
It's good that you replied as you could be her 'stalker' for all we know.
There are quite a few expats on this forum and if you are lucky, 1 may drop by and tell her you are looking for her, but if nobody knows her on this board or none want to get involved (which is fair enough) then I think you should not worry.
As you are going back in april then you may stand a good chance of meeting her again, the ladies do move around from time 2 time but even if she has, the others at the bar may be able to tell you where she has gone or provide you with a phone number.
Good luck