About six months ago I posted a lot about a big family fiasco involving my DSis wedding and the behaviour of her and her (minor celebrity) DP towards my young adult DS. Long story but I ended up not going to the wedding because of it and the shocking way they treated my DS, including writing vile emails about him and me and sending them to various family members around the world. Since then there's been no reconciliation and the last contact I had was an email saying I was dead to her. I felt my DM did not give me any support through this episode and tried to gloss over the whole thing in the interest of not spoiling the wedding.
A few months after that, out of the blue, DSis's DH (my new BIL) wrote a shocking email to my DB accusing me of amongst other things of being a malicious liar, citing various completely untrue things, and again, saying horrible and unfounded things about my DS. DB was shocked by the email and so was I, but we decided to completely ignore it and not feed it by giving him airtime. I told DM about it and she knows my feeling about BIL and what he has done to alienate me and DS and the things he has said.
So now, another few months have gone by and it is DM's 80th birthday coming up. Obviously we had started planning a few little things to celebrate the big birthday. But yesterday DM rings to say that DSis has given her a surprise trip to Bali on her actual birthday so she'll be going away with DSis and the BIL who has caused so much hurt and damage to me and DS, and torn apart previously loving family relationships. AIBU to feel hurt that she would even consider going on holiday with this person, knowing what he has done to us. Also that DSis gives the big celebrity-style gift and the birthday plans we made as a family are overlooked, so DM goes away with this person who has caused so much hurt and destruction.
I want my DM to have a nice time (obviously anyone would love a trip to Bali) but AIBU to feel hurt and betrayed that she is willing to spend time with this BIL knowing what he has done? I really don't know if I am or not, but I certainly feel very hurt and let down.