Apologies for being absent from my own thread for a while but have been very busy as of late... I have however been reading everything that's been posted (just haven't had time to reply) so thanks all for contributing on both sides of the argument
Just to set some things straight from my POV: when we invited her for a holiday, we did really mean a holiday. Yes of course we wouldn't say no to some more fun along the way but that wasn't the main intent of the whole thing. We genuinely care for her and as such it turns out that we're not different from any single guy falling for a BG... whether that feeling is mutual is of course another matter and maybe we just got a bit too carried away on the emotional rollercoaster in a way we had not anticipated

Regardless of whether or not she saw us as more than customers, we understand that it is not economically viable for her to come over her without getting paid. Whether that than qualifies this as bringing prostitution over I leave up to you to decide. All I know is that if I had friends from back in Europe that wanted to come over and would not be in a position to make the trip from a financial point of view, we would also do our best to contribute financially and sponsor their visit without expecting any kind of immoral acts in return

I'll admit though that we were a little more excited to bring her over than any of our old friends ;buzzz;
I guess, being in a monogamous relationship since we were 16 kind of had us unprepared for the rush and excitement of having someone new in our lives...
Also, we were just looking at a 2-3 weeks holiday as that is the only time we have left ourselves to spend some holidays (not counting the planned trip to Hawaii in Sept). We don't think it would be a great time for her if we're away at work all the time and leave her to fend for herself.
Anyway, all of this may be moot in the meantime as she hasn't come back on Whatsapp since Thu last week. We didn't send anything ourselves just to see if she would reach out herself, but that hasn't been the case. Sending something yesterday hasn't resulted in a reply so maybe the money that we spent on her while over there has 'run out' and we need to insert more credits to keep it going
This, combined with what most of you have suggested, leads me to believe that you are absolutely right in having to first determine a bit better how she sees this whole thing and whether her interest in us bringing her to Oz is genuine. We've had some long talks about this and even though my wife was really looking forward to Hawaii, we may reconsider going back to LOS in Sept instead. That's of course only in case there is something to go back to. In case there isn't anything there, we may still go to Hawaii and then just hope that we can get just as luck when we go back in April next year with someone else. Although, as stated previously, it's not the easiest being a couple...