Maybe her zivug is in Australia. Since she will be in Australia for vacation anyhow, this is reasonable hishtadlus in case her zivug is in Australia. She has the rest of her life to date guys in the US in case her zivug is in the US, but this may be her only chance to date guys in Australia.
In any case, it’s what her mother wants her to do. That is a good enough reason to do it.
CTLawyer – I wish your wife a refuah shelaima. I wish I could ask you for her name to daven for her, but I suppose that wouldn’t be possible. B”N, I will daven for her in any case.