Be carefull on the apoligiy, If it looks like it was forgotten don't kick a sleeping dog. Let it go. If it looks like is is still bothering her just leave it at "sorry for not inviting you" It would be so easy to make a comment about the OM and you don't want to do that in the heat of the moment
Husband
And if I claim to be a wise man, well It surely means that I don't know
