"Sonic the Hedgehog: The Secret Admirer" (A Golden Book by John Michlig)
The cover may say "Sonic 2" (around the time when this was published) but it has nothing at all to do with the games. From the front, you can tell the plot right away. Obviously Sally is Sonic's Secret Admirer, & the old strange pinkish with black hair proto-princess who happened before they settled on her style. (Why does Tails look so drunk on the cover? Shouldn't someone have been approving the art?) If you liked the early Archie Comics series of stories, you're likely to like this as well. And if not...well you can still collect it. Secret Admirer & Friend or Foe.