Sorry, no medicine to fall out of love with a puppy. And the pup is a cutie. Maybe you and mom could go visit the pup and see if the puppy even likes you. That is always a good way of deciding. And you can always tell your brother that the puppy is for him to enjoy too. As for house training, if there is someone home at all times, then that is just being used as an excuse. My husband was in college, and I was working when we got Belle (St.Bernard) and she has turned out fine. This sounds like something ya'll need to have a family meeting over. But don't take too long...a cutie like that won't be there forever....