Normal
It's really not that uncommon in kids like ours. It has nothing to do with you. My difficult child is always better for others (well most of the time). I've read that is totally normal. Others usually don't have to have them do anything they don't want to do. It has nothing to do with you. I'm glad when difficult child is good for others because than I can get some respite. Although I do have to say I wish he would spread the wealth!