spirit world's guide to defeating demons

AU to season 6 SPN, AU to after the Dark Tournament YYH. Sam made the ultimate sacrifice and made Dean promise to keep going, to find his true happily ever after. Dean figured he'd try. But when did anything good ever happen to Winchesters? So when he wakes up some place that isn't the Impala and there's this kid with a pacifier in his mouth, Dean shouldn't have been surprised.