DS1 (11) is very good friends with a boy from school and because of this, I have become very good friends with his mum. We go for nights out, coffee mornings and go away for weekends. She has another DS who is older and I have DS2 who is younger.
DS1 was invited to her DS's bonfire party tonight. Her DS was inviting some of his friends from school and then she was having an adult party afterwards with the mum's of some of the invited children. The children whose parents she didn't know went home.
I was invited to the adult party afterwards but she didn't want to invite DS2 (who is 7) as she just wanted it to be the older ones. I was completely fine with this but said that I couldn't attend as I would have to do something with him myself for bonfire night and he would be upset if me, DH and DS1 all went to a party that he would have enjoyed without him. She was a bit gutted that I wasn't going to come but understood.
So tonight I went to pick DS1 up from the party and noticed that another one of the mums from school had brought her DD who is in the year above my DS2 but only a few months older than him. DS1 said that this girl had been given an invite so not just a mum who had ignored requests not to bring younger ones.
I will point out now that my DS2 has learning difficulties and is developmentally delayed but he is not in any way disruptive, loves parties, sociable etc and usually my friend is complimentary about him.
Should I be upset and mention it to her or AIBU. I'm really not sure or if I am just a bit too close to be objective.
All I can see is that she didn't invite my DS2, not because he was too young but because he has SN.