Trying not to dripfeed so apologies if long...
I've been estranged from my younger sister for almost 3 years. A variety of reasons that culminated in her screaming and swearing at me and trying to physically push me out of my mother's house on Mother's Day in front of my children. I had absolutely had enough by that stage and disengaged totally. One of the things that most exacerbated this whole problem was her habit of inviting her friends along to every single one of our supposed 'family' occasions.
Our grandmother died last week and sis and I have been tentatively communicating via email and had agreed to go to lunch together on the day of DGma's funeral next week (she died overseas and we can't attend the funeral) to 'say goodbye to DGma' as my sister put it.
Now DSis has just emailed me me to ask if she can bring a friend along to this lunch.
I feel really wtf about it and feel like telling her to go for it with her mate but that I'm too busy at work to come. (Sort of true but I would have swung it).
How should I reply? I'm dead sure she's already invited the ( mutual but not close - didn't really know my Gma) friend so if I say no now I'll look like a bitch.