Upset we weren't invited to the wedding

[Daisypod]

My step sister is getting married in august, the invites went out a few weeks ago and it's become clear me and dh aren't invited. I asked my mum about this and she confirmed it, said she had asked my step dad about it and he just said he didn't want to get involved.
Mum and him got together when the kids were older teens/young adults so step siblings have never lived together but we've always got on. We all live in different cities and even countries but we have get togethers at Christmas etc
The wedding is abroad and child free (we have a few kids) but one of the other step siblings got married last year and it was child free and we went and had a lovely time, we had zero problem with this.
It's become clear also that it is going to be a very 'instagramable' wedding and we just don't fit in, all their friends are glamorous and we are homely and overweight.
They have invited family of parents, step parents, full siblings and their partners and about 40 friends according to my mum but we haven't made the cut.
I know the usual mn attitude is people can invite who they want to their wedding but Aibu to feel sad and angry at not being invited?

How very unkind, and destructve for the rest of your lives. Just ensure you are breezy about it ' oh, we aren't invited, no idea why' etc. If asked.

If you are asked what you are giving as a gift, look confused and say ' we aren't giving a gift, it would embarrass stepsister, as we aren't invited.

No gifts, no presents and don't bother with the hen party if there is one.

How embarrassing for your dm. I wouldn't go if I was her, I'd spend the day with you and dc instead.

Why crap family?

In my book, that would be trying to steal from each other, being nasty, speaking behind your backs.

You just grew apart. I get you are sad about that but it is nothing atrocious. He does not feel close to you and he is not a vilain for that.

I frankly do not understand the drama.

You were not invited, hence she does not consider you close family.

Can you live with that? I'd bet you do not consider her your close family either.

I get it may sting a bit but it does not guarantee any anger or, God forbid, vengeance. Send her a nice card and wish her genuinely well, as you would do to a coworker. Do not send a gift or engage more. It is absolutely not worth any resentment. She is just an acquaintance, so treat her as such.

Call her out and ask why.

I agree! ⬆️ x

Ouch. That is a hurtful snub.
I would probably avoid them in future and make sure I didn’t invite them to any gatherings.

Your mum and step dad just playing along without saying anything would hurt me too.

Do this! Fab fun times with the children lots of pics passively aggressively posted all over Instagram. And step dad and step sister are now demoted to people of no interest at all for you.

Just wondering what’s happening after the wedding when reality steps in. Does she expect to connect with you and carry on as usual