are there any boys she can play with? maybe you could explain that not everyone plays with everyone but to see if someone else will play with her... like one of the boys?

As you mentioned the real world can be mean and is that not everyone wants to play with everyone but tomorrow they might want to. It is heartbreaking and I watch it with DS all the time. I try to tell him that it has nothing to do with him and maybe they are having a bad day or they are the ones that aren't nice and encourage him to move onto something else.

I am certainly interested in what others have to say about this