OK, I really need to know if I am being unreasonable, this has been doing my head in for a few months but I guess I have just squashed it away.
In summer hols Sister2 showed me where she has booked for her family (husband + 2 kids) to go for Christmas. She explained she has wanted a Christmas away for ages but couldn't as her husband often works. I said oh that's nice etc etc.
Sister2 then told me 'Yes, it's great, I've booked one big enough for Mum and Dad to go, and Sister1'.
So instead of being able to see any of my family around Christmas, my Sister2 has taken them all away. We have the last couple of years had them here on boxing day but it looks like it won't be possible for them to come this year (they could but my sister would rather we met somewhere for a day out instead. My dad has told me he was pretty miffed as he was just told he's going, but he never rocks any boats so he'll go along with it.
AIBU to be upset not to be included/invited and for this to have been decided? Both my sisters are a lot older than me and I feel like I'm treated like a child, despite being in my thirties with two kids. I honestly don't know if it is normal for families to operate in this way, it's all I've known really. It's definitely not what I do with friends etc.
If I'm not being unreasonable, what the flipping heck do I do about it?