Keeping it short:
DD in Year 2. I am friends with a group of other parents. Last year, one of the kids a smallish party (let's call her Katie) - my DD not invited, most of the other kids in the group all invited. Found out about it after the event, I was a bit put out but got over it, our DDs are friends but not super close so wrote it off as one of those things and never mentioned it. (FWIW Katie was invited to DD's party which happened before.)
DD bday coming up in December and we agreed she could choose about 10 kids to invite to a smaller party than last year. DD has not chosen Katie. All other kids in the 'group' are on the list. In the interest of being the bigger person, should I add Katie to the list? Or should I stick to DD's list and leave her off? If I ask DD if we should invite her, she will say yes - she has lots of friends and would invite the whole class if possible. Part of me thinks 'No, DD didn't get an invite so why should we invite her back?' The other part of me thinks 'Don't be ridiculous, this could escalate, just invite her.'
AIBU to not invite Katie?