Here is the gist: I am trying to figure out if I absolutely HAVE to invite my FSIL to my potential bachelorette party next Spring. I want to figure this out ahead of time, because it is a tricky issue. She lives in the same city as my fiance and I do. She and I are not friends, but are on sort-of polite terms. She usually is not very nice to me and has never invited me to hang out with her and her friends, (even when I just moved here from another city and didn't know anyone) so I don't see why she would be upset or anything if she didn't get invited. I am afraid that my fiance will get pissed if I don't invite her also, since he knows I don't really like his sister. I want to avoid problems and arguments, but I know if I invite her, she will recant EVERY detail to my fiance's mother, and I will not be able to be myself or have fun at my own bachelorette party. Do I have to have it in another city to avoid issues? Or can I just not tell my fiance any details of the plans so he doesn't ask any questions? (what guy would purposefully ask about the guest list anyway?) Or can I have it in this city and just make sure to not talk about it in front of her at all, and if she asks about it, lie and tell her I am not having one?? I really don't like her, she has never been nice to me, we aren't friends and I don't want her there. Is that OK? Thoughts? Anyone else had this problem?