Recently a long time friend and I along with a couple other girlfriends had dinner. I was sharing details of our upcoming wedding. I shared with them that our venue will only accommodate a certain number to be comfortable. We have a large guest list of adults and we do not want to cut important adults off the list so that others may bring their children. My friend was very offended and responded in a way that was very embarrassing. She said "even MY kids?", "MY kids are not invited to your wedding?'...and went on to point at me and say "well YOU are telling them they are not invited to your wedding, NOT ME!". I feel horrible, but am not willing to take people off my list. I know I need to stand my ground, but can someone give me advice on what to say to her? I also recently found out she is disappointed she was not asked to be in the wedding (although we only have 2 people standing up for us). What is good etiquette?