DS1 has just gone into year 1. Last year for his birthday we had a party and invited the whole class. I think he was invited to 3 parties last year. Term only started yesterday but I saw several of his class mates coming out of class brandishing invites, he didn't have any. He never gets invited on play dates, and a few times I've asked classmates parents if they want their child to come back to ours and they've made excuses.
For the most part DS1 doesn't notice, but a couple of times he's been in tears when he's found out about a party he wasn't invited to.
I know it's not a big problem, but it breaks my heart to see him constantly excluded. He's not got any behavioural problems that I'm aware of so it's not that. It just makes me so sad.