At the moment you can report users you've been out for a meal with in the unlikely event of them causing a problem. We'll soon be introducing a feature for ifabbers to report a message like this.
I'm sorry you've been bothered by this person. We aren't the only women-only network out there to be occasionally targeted in this fashion. Fortunately it doesn't happen often. It's just a sad fact of life....
Absolutely ignore them. If they persist in bothering you, please let us know their username by emailing us at firstname.lastname@example.org and we'll look into it.
Thanks for letting us know about it. Please don't let the odd loser put you off making the most of some proper girl-time!