Actually, what she wrote is the standard anglicized version.  If you want to get technical on a pretty woman providing well wishes you should at least have corrected her in the proper manner - Eire/Eireann/Erinn go brath/brach are all correct derivations depending on whether you use the dative or nominative, etc.  In my opinion though it's usually best just to let pretty women say what they want......haha.