My dd 10 years old has had a 10 year old male friend since she was 5. On the whole they have been good friends with no issues except one. Over the year's I've noticed this boy has picked dd up and down as it's suits him and his mum. For instance he will play with dd if he has no one else to play with or he will play with other children then when they go home he will then call for dd. Over the years I've noticed that his mum has facilitated this behaviour.
A few days before Halloween this boy was telling dd how he was going out with other kids etc and didn't invite dd. Then the day before Halloween he said dd could come out with them and she accepted.
So Halloween night came and we were having a family party. This boy came to the door with another girl trick or treating with no mention of inviting dd out. He took his treats and left. Dd seen him at the door and rushed to get her outfit on and that's when me and dh had to gently break it to her that he hadn't come for her. Dd broke her heart crying and was really upset which of course as parents wasn't easy to see especially as dd is a tough cookie and is a deep person emotionally.
So then about 40 mins later the boy comes knocking for dd to come out trick or treating as the other girl is away home. I said to the boy why did you come for dd ? Was it just because you have no one else and please don't treat my daughter that way again.
Ten minutes later his mum is messaging me that the boy doesn't know what he is doing because he has autism and I shouldn't have mentioned anything to him. I said to her what about my dd who is upset? She sent me a random screen shot of autism and then deleted me from social media with the message just because my son doesn't fit into your social norms
Was I unreasonable to say to the boy about the way he was treating my dd?