I'm sorry for the loss of your Boston Terrier. I'm sure Louie is also mourning his friend's passing. Is Louie a pretty active 7 year old? If you brought a puppy into the home, do you think Louie would want to play with him or might he be turned off by having such an active pup as his new sibling? Sometimes when you bring a new dog into the family, it's a good idea to try to match temperaments. Would you consider adopting an older dog instead of a pup?