Ok, let me start off by saying, while flash is still in operation I'm aware that this won't work, this is for HTML5 when it is in full blast.
So when you divorce someone on xat the person you divorce is still married/BFFed to you. My suggestion is to add it so that once you divorce a user. It automatically divorces both you and the user you were BFFed to.
I am suggesting this because sometimes when a user divorces, the divorce is on bad terms and one of the users can continue to be BFFed to you even if their not beside your name. I personally think this will be a good addition so the divorce works for both ways and it creates lets arguments for each user and the users are not using the regname to the person they were BFFed to.
I'm totally open to opinions to this matter so feel free to give your input or any changes you may have.
EDIT 1: It would also be an interesting concept for a way to have a choice. So either, you divorce for both users or divorce for only yourself for those that may want more than 1.