I had an issue with a "friend" who came to our engagement party and also received a "save the date" She recently went on a drunken tangent to my fiance telling him he was stupid for marrying me and that he shouldn't marry me and it wasn't too late to back out. Apparently she used to have a thing for him.... I am now incredibly uncomfortable inviting her and her boyfriend to our wedding now, despite them already being on our guest list and getting a "save the date." What's the proper etiquette here?