DEAR MISS MANNERS: Is it appropriate for one of my friends to text my fiance exclusively with casual conversation? They were not friends prior to our relationship. I'm not asking if it's wrong, considering that I do not know the situation, but rather I'd like to know if there are any guidelines that deem it appropriate.
GENTLE READER: Are you asking if it is appropriate for your friend to be friends with your fiance? Or are you asking Miss Manners to tell them to stop?
If your fiance is texting your friend while you are trying to hold a conversation with him, then guidelines would deem this to be rude. Otherwise, you would do well to be happy that everyone is getting along.