Next stop: figuring out approximately how much Doctor Sword's girlfriend weighs per foot, then calculate how much a 100 foot tall version of Doctor Sword's Girlfriend would weigh?
Or if she were shrunk down to only 3 inches?
What if you kept the body weight but simply changed how tall she was?
How short would she need to be qualified as "fat"
How tall to be anorexic?
Would you still love her if any of these conditions were met?