Years ago, when I first started out punting, there was a real hottie on one of the agency sites that I set my sights on booking. Spoke to the agency and they said she'd gone back home for a few weeks, but was due to return. Alas she didn't return and that still irks me from time to time.
In short though, if you see a WG who floats your boat, don't wait. No point.
Could get run over by a bus tomorrow.