WIBU to assume this about invitation?

[MannersAreAll]

Possibly outing, but I'm so angry I don't really care.

Invitations arrived weeks ago for DH's relatives big birthday and it's been discussed for months.

Two arrived for adult age children plus their partners. Then one addressed to "Manners' DH, Manners & the kids"

Living in our house atm with us is our two younger children plus 3 year old relative. Basically an orphan who we have legal responsibility for and who will be with us forever. Has been with us for 18 months. Was part of big family Christmas last year, went to a family wedding on DH's side in the summer - basically has been treated as one of our children as we're their forever home.

Except it turns out is not invited to the birthday party as it's "family only". Only emerged when DH happened to mention us booking two Premier Inn rooms as we can squeeze DN in a travel cot anymore.

How shitty is that? This isn't a small party either. It's about 250 people.

I know people throw words around, but I'm genuinely fuming.

Really don’t worry about me not using quotation marks, it was easier to do.

Easier to do, but made the meaning entirely different given quotation marks and italics are entirely different.

If you're happy to come across rudely then up to you.

Also, please do not criticize what you don’t know about other people’s lives before the age of three and trauma.

You'll find nowhere on the thread that I did that...

The only person who came across as criticising was you.

That’s outrageous. Don’t go and make a special deal of all three of your kids instead. She can’t pick and choose like that.

It's a he and I wouldn't be surprised if the party has been and gone by now. OP was planning to take the 3yo away for the day.