I'm gearing up to start addressing the invites for my December wedding. We sent out our save the dates in April since the wedding is a week before Christmas. One of the save the dates was addressed to FI's friend and his fiancee. They have since broken up and he is dating someone new. Neither FI nor I ever really got to know his fiancee.
So here's the question: Should I invite his ex as well? My gut is telling me that it's probably good etiquette since her name was on the save the date, but I would hate for it to make the evening super awkward for FI's friend and his new GF.
TIA!