So this happened before Covid, when people could attend events etc.
I had just got engaged and my family had kindly organised a family dinner for just my parents, siblings and partners and my cousin had organised a brunch the following day for the wider family to mark the occasion.
My SIL has a track record of becoming ill whenever my family has an occasion - she's missed major birthday celebrations, naming ceremonies etc.
On the day of the dinner she insisted that we call to her house beforehand, which was not something she'd ever done before. My mother, my sister and I called down. My brother, (SIL's husband), and my Dad weren't there. SIL congratulated me on my engagement and told us she was pregnant.
I was delighted for her, but surprised at the manner that she had announced it, especially given that my brother wasn't even there.
She then became ill and hysterical later on in the evening and didn't show up for the family dinner.
I was mainly confused and surprised but my mother was quietly livid (she did not make this known to SIL or brother). She did ask them, however, not to announce the pregnancy at the brunch the following day.
Anyway I'm sure you can see where this is going. They announced it at the brunch. Everyone seemed a bit stunned by the announcement, there was no major fuss made.
Anyway, this happened ages ago, but since then she has done this again. She didn't attend my hen party and she took ill just after the ceremony at my wedding and left before dinner started. We had booked and paid for a room for them at the wedding venue so she could have gone for a lie down but instead she went home. There was a second day of celebrations at the wedding but she didn't attend that either.
We make it our business to attend all of their parties/events etc.
We never spoke about this. I just sort of pretended that it was normal because frankly I didn't know how to approach it, and I don't want to start a fight. I have a good relationship with my brother. I mentioned it to a few friends but they didn't really offer opinions on it.
AIBU to think that she is trying to get attention, or at least trying to disrespect my celebrations deliberately? This isn't normal, right?