This is a huuuuuuuuuuuuuuuuuuge wild guess so it is kind of stupid......
I was wodering what if snape loved lily (hard to imagine) and on the night that he overheard Professor Trewleny talking to Professor Dumbledore about the profecy he confessed to dumbledore later on that he didn't know what he was doing....
He may hate Harry because he didn't get Lily because of James.....
THIS IS AN INTERVIEW PART FROM MUGGLENET.COM
Ernie: I wonder if you can let us know what form will Professor Snape's Boggart and Patronus take? I am very curious.
JK Rowling replies -> Well, I'm not going to tell you Ernie, but that's because it would give so much away. I wonder whether Ernie is your real name? (It was my grandfather's).
What will snapes boggart turn into????
Lily's dead body????
Harry's dead body???? toooooo hard to imagine
james dead body???? UMMMMMM forget that.......
And if it is Harry's dead body it mabey because he loved lily so much that he did have a place in his heart for harry deep deep deep deep down.
But why did he always loath harry at school..... well that mabey because he didn't want to show his feelings????
Face it Lily did stand up for everyone...... even slimeballs.... (SNAPE)..... so that mabey why he liked lily because she always stood up for him.....
ATTENTION: this is just a guess i'm not saying that this is true it is just a GUESS.......
What do you guys think??????
P.S. Thank God Lily didn't marry snape......ewwwwww......imagine their kid 🤢 .... MALFOY... just give him red/black hair and green eyes...HA wow my imagination is WILD tonight.
-H.H.Siddiqui
😊