Oh bugger WMP...that really sucks. I know exactly how you are feeling. Maybe you should give the frostie a go...you could get it sent back over like Kiwidreamer suggested. It could be the one...perhaps all the travelling really does take a much larger toll on us than we realise. We didn't have any to freeze so have to do the whooooooooole thing again...if we have any next time we will consider sending them back to OZ.
So sorry to hear...everything was sounding so promising. Look after yourself and give yourself time to get over this cycle before you decide anything. That BFN can really shake you around a lot more than you are expecting.