My DS is 18mo and my friends DD is 2.5
We often go out together or go to their house and have coffee while the kids play together. His DD is sometimes bossy, isn't really used to sharing and doesn't really come in to contact with many other children but she is sweet and very good with adults. She is at nursery one morning a week. So often she will say things to my DS like "No! Don't touch that" or "It's my puzzle, give it back!" or "DS is being naughty" when all he's doing is standing next to the table with her. Where I can, I say to both of them "We are all sharing, aren't we, we can all play" or "He's not being naughty, he wants to play with you"
DFriend is completely oblivious. He either doesn't hear her or does and ignores it and continues chatting to me. I think he doesn't notice because sometimes she goes through my bag looking for my sons lunch box and he only says something when I notice and say something first.
What do you do with a friend like this?