If Harry Potter was a girl and looked like Lily, Snape would have been a completely different character. He would have loved her, cared about her, and been just a nicer guy in general.
Discuss.
He really wouldn’t have, he would still be a relentless, prejudiced bully since his sour mood didn’t just come from Harry, it came from being a general asshole. Why else would he be so horrible to Hermione and Neville and anyone who wasn’t from Slytherin?
(Girl!Harry would probably have a flower name like Lily and Petunia, maybe Daisy or Rose or Iris)
Rosemary Lily Potter, with her red hair, kindness and green eyes, would have been the Sansa Stark to his Littlefinger.
She wouldn’t be someone he loves or cares about but something he obsesses over just for the resemblance to her mother, something he always wanted but could never have, and now he has her dead ringer at his mercy. But he still would have let her suffer because she’s the child of James.