Harry also happened to be Snape's least favorite student.
Despite her rejection of him when they were kids, Snape remained loyal to Lily and out of his undying love for her and became the most essential player in the game to take down the Dark Lord. Risking his life countless times, his loyalty to Dumbledore never wavered.
It is without a doubt Draco Malfoy, it's very obvious throughout the series how favourably he treats Draco, there are many different factors for this, as we know Both Student and teacher are in we're in Slytherin and so this is a reason for the connection.
He was cruel to many students, but especially toward Neville Longbottom. It was no fault of Neville's but was instead because of Snape's love for Lily. Neville was almost the Chosen One, and the fact that he wasn't broke Snape's heart to look at him, which caused Snape to lash out cruelly at an innocent child.
He strongly dislikes Harry and often insults him by insulting his father James. As the series progresses, it is revealed that his treatment of Harry stems from Snape's bitter rivalry with James when they were in school together.
The Reddit thread agrees Snape's Boggart may revolve around the person who mattered most to him: Lily Potter. Snape's unrequited love for Lily lead to his greatest fear coming true, a fact that wasn't revealed until The Deathly Hallows.
Severus Snape was a complicated character and one you couldn't pin down. However, there was one thing that was clear – he loved Lily Potter.
So Snape was cruel, biased towards his house, and downright rude to his students: this we can't deny. Calling poor Hermione an 'insufferable know-it-all', for example, was pretty terrible.
Snape Wouldn't Hate Her So Much
Harry reminded Snape of James, but if Harry had been a girl, he may have reminded Snape of Lily instead. Meaning Snape would have been a lot more eager to protect and help girl Harry throughout the series.
Although Snape may not have projected his memory of James onto Harry, he still would have been predisposed to dislike him by virtue of him being James Potter's son. Harry being in Slytherin would not have changed this fact.
Professor Snape was firmly in the friend zone from day one.
Since then, James and his friends, also known as the Marauders, taunted Snape throughout most of their schooling.
He doesn't trust Snape as Dumbledore does, but he believes that he can detect any disloyalty. Moreover, Voldemort regards Snape as highly intelligent and therefore ' as a true Slytherin ' a person whose top priority is to take care of himself. To his twisted mind, selfless equals stupid.
Most probably not. Snape's hatred of Harry came from having to see James's face every day and Lily's eyes behind his glasses. Harry would've been a constant reminder of the love Snape lost, and I believe it would've been more painful if he was in Slytherin because they'd have to see each other more.
Later in the year, McGonagall duelled with Death Eater Alecto Carrow during the Battle in the Astronomy Tower and later learned of Snape's murder of Dumbledore. McGonagall was initially appointed as Headmistress, but was demoted after Voldemort took control of the school and placed Snape as Headmaster.
It probably had at least a little bit to do with her friendship with Harry Potter. Additionally, her brilliance made it harder to favor the Slytherins. No matter the cause, it's clear that Snape loathed that Hermione was so smart and so willing to answer any and all questions during class.
“You disgust me,” said Dumbledore, and Harry had never heard so much contempt in his voice. Snape seemed to shrink a little, “You do not care, then, about the deaths of her husband and child? They can die, as long as you have what you want?” Snape said nothing, but merely looked up at Dumbledore.
Snape made fun of Hermione's teeth
Snape dismissed the curse as bearing no change to her appearance, causing Hermione to flee in tears. We knew Snape wasn't exactly chummy, but this was a real tipping point.
Just like his father, Draco loved to hate on Muggles. He took particular pleasure in taunting Hermione Granger, who just happened to have Muggle parents. Malfoy called her 'Mudblood', a very grave insult referring to a wizard or witch born to non-magic parents.
Snape's obsessive love for Lily fed his equally obsessive hatred for James, and meant he would stop at nothing ' even arranging the murder of her child ' to possess Lily.
Draco Malfoy's mother Narcissa was cold, cunning and devoted to the Dark Lord. But she was also a mother, which meant she was willing to risk everything to make sure her son was safe. When Harry survived Voldemort's Killing Curse for the second time, Narcissa pretended he was dead so she could get to Draco.
Ironically, Lily might have grown to love Snape romantically (she certainly loved him as a friend) if he had not loved Dark Magic so much, and been drawn to such loathsome people and acts, yet it was Snape's desire for Lily's admiration that drew him to the dark arts in the first place.