My daughter is in year 3. There is generally 6 other mum that stand together in the playground along with me. I was aware of 4 of them having evenings out together, hearing them arrange who was picking up who etc., I have now seen through a social network site that they have all been out together, not inviting me, I can't help feeling a bit crap about it all. My daughter's best friend's mum has always been friends with me since they started school, we have been out with the children, she hasn't mentioned any of this to me, I do feel hurt by it all.