I need a bit of a gut check. I'm one of 3 sisters and one of them (I'll call her sister #1) unilaterally scheduled a milestone anniversary party in our hometown for my parents. My nuclear family currently lives abroad and when I expressed surprise that she scheduled it without at least running the date by us she said something like "oh I just assumed you'd come back to visit around then anyway." At that point I didn't even know if the party would conflict with the kids school schedules! She has a habit being a bit passive aggressive and of not telling me things, assuming I'll hear it eventually from my mom or other sister, but for events we've generally consulted eachother first and divided tasks. Anyway, we are traveling back for it and sister #2 and I offered assistance with planning and the understanding has always been that we'd split the cost 3 ways. Sister #1 clearly wanted control over the vendors, etc. which is fine. But she's involved sister #2 in discussions about the guest list, menu, etc. and I've been left out altogether even though I've tried to engage at various times. When I asked her again the other day how much $$ I owe and when she needed it by, she now said she can cover most of it herself because she's been working tons of overtime to save for the party and assumed I couldn't work overtime or get a side hustle myself. Okkaaaay. We all work and I've never said I couldn't pay my share, I just want to be able to plan! And the fact that she needs overtime to pay for it? I know on the surface this may seem like a lovely gesture but like any money it has strings attached, and I'm sure she'd like nothing more for me to have to admit to guests and our parents that I had no part in planning or financially contributing to the party. It's our parents, and if we're going to do this we should all contribute.
AIBU to just feel hurt and annoyed about all this? I admit that as an expat I already feel a bit disconnected from family so maybe I'm just being extra sensitive, but it feels deliberate and I don't understand why.