need your help!!!

some days ago i was reading a yaoi here. It was about waiter/cook and the other person likes his food so much but he doesnt like carrots and he is so expressionless and rude sometimes. One day when shop is closed he asked the waiter to cook for him at his place. He has huge collection of CDs and stones and stuff. Waiter slowly realises that this person is not rude but have some kind of autism, something like that. Anyone please?