No kidding, I wanted FMF before we married 8 years ago and at the time she was ok with it now she is not1?

Answer 1

Maybe if you actually posted what FMF was you would get the answer you were looking for and would not have to keep asking the same thing.

I am assuming you mean Female, Male, Female??? At which point I have to say.. that the idea may have appealed to your wife 8 years ago but after a marriage that long maybe your wife just doesn't feel the need to share you or be shared with anyone else.
My advice, let it go and quit asking her about it. Unless you want to lose your wife.