My dd has a friend that is always inviting herself over for play dates but my dd never gets invited back to hers. In transpires that her mum doesn't like my dd going round as she always goes go up the stairs, we don't have stairs as we have a ground floor flat so stairs are a bit of novelty. My dd is autistic and I'm sure this is the real reason for the non invites. My dd adores it when this girl comes round to play as she doesn't have any other friends due to her struggling with social communication. I can't help feeling really resentful towards this other mum especially as she often has another girl over to play. Should I carry on having this girl over or refuse which would make my dd unhappy.