Amen to your comments, Margaret!! Mimi, our cat, is also called "Louise" (something my ex started years ago, don't ask me why), "Meems" and "Weezie" (I guess we got that from Louise). Mimi is 11 years old and answers to all of the above!
Isn't hilarious what we do? Our Golden Retriever, Honey, is called "Honey Bunny" much more often than her real name, and our other Golden, Lilly, is more often referred to as "Lillian", "Lil" or "Licking Lilly" (a very appropriate name for this very loving dog).
So glad you brought this up!