Don't take this the wrong way but I was so happy to hear about your day! I thought I was the only one! My 4yr old son tells me on a weekly basis that he's moving to my mum's house - and like you and hour or so later he wants a cuddle and says he loves me, I even get the same 'no' response when I point out that he's changed his feelings...don't really have any advice to give, I usually just go along with the flow when he says it - seems to be a 4yr old thing as it's only been the last few months he's been pulling this stunt. I wouldn't let him watch and older kid's cartoon the other day and he proceeded to pick up his play phone and call the police on me LoL Hang in there and try to laugh it off - it's what I'm doing to try and survive this year with him