Answer:
What has a spine, tail, and leash but isn't a dog?
You can find me inside your body but not below the waist or in your tummy. I am located in the upper part and I am a symbol of love.
Snow White was friendly with seven of them
What is really easy to get into but really hard to get out of
They're big and blue, and larger than seas
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?