No I don't understand it either! Thats why I have been moved to write on here. Ok, when I pick him up from school he usually just runs off with his friends without saying hello to me. Sometimes he says "not you again" when he sees me. On the way home in the car I will ask him questions but he doesn't always answer me. He's not allowed to watch television during the week so when we get home I will read to him or sometimes we make cakes, he will engage with me then. When my son comes home from work he just wants to be with daddy which is understandable as he does not see him every day. When my husband comes home from work and says Hello xxxx how are you today he is met with silence. When he goes to bed and we say goodnight we do not get any response. In the morning its the same with no response from him to our good morning how are you today sort of questions. He then goes off to school without a goodbye. Its all very strange and I just wondered if anyone else out there had come across the same thing? Thanks everyone for your input, its much appreciated.