Why Do Girls Choose Dogs As Their Best Friend? Have you noticed it? Girls love dogs. However, what do you think are the reasons? In fact, you may have heard about some female celebrities, who are single. Most of them claim that they are happier when they have their dogs than to have a boy friend. What’s in a dog that they cannot find in other animals or even in humans? To know the reasons why dogs are a girl’s best friend Most girls love dogs even if their dogs are not perfect..