My four yr old said this yesterday... He had been shouting at the baby and made her cry, so hubby took his ball off him. I was comforting dd and he said 'I think nobody likes me'. I've tried to talk to him about it and have wondered where it's come from. If we tell him off sometimes he will say "you've made me sad now" which seems quite normal but this seems a bit much. I can't decided if this is just an attempt at manipulation, I hope he doesn't really feel that way. I explained we all like and love him very much but we can't let him shout at and upset his sister.