I know all about SN children Jenk, I do think you are being kind to Katie.
I think it suits her very well for Harvey to stay in his room. The constant, "say this Harvey, say that Harvey, say Mummy's pretty Harvey" drives me insane.
Of course, I don't know all what goes on but I dislike her intensely. I hate all that she stands for and I do not believe that she is the, 'great mum' that others do.