Snape hated Neville because he was a daily reminder Lily Potter could have lived. Snape's guilt over his part in her being targeted by Voldemort in the first place was bad enough, but to see a living, breathing reminder that things could have played out differently even after that act made Snape particularly vicious.
Neville Professor Snape Neville fears Professor Snape who treats him rudely with sarcastic comments. Neville seems afraid of this harsh treatment that makes him feel inferior constantly. Parvati Blood-stained, bandaged mummy Parvati is afraid of something that is scary to her, possibly because it can harm her.
During his school days and shortly thereafter, he probably hated James the most. He seemed to be the ringleader bully, then married Lily.
He is one of Harry's strongest supporters over the course of the series, and becomes close friends with Ron, Hermione, Ginny, and Luna as well. Neville plays a significant part in the two final books and the fight against Lord Voldemort, destroying the final Horcrux, Nagini, with the Sword of Gryffindor.
Lily ended up hating Snape for what he did at school, his obsession with the Dark Arts and his friends. Snape didn't like Harry, he hated Harry because he was split image of his father, James. Snape only did what he did because Harry was Lily's son and it was partly his fault that she died anyway.
And although she was one of the few people at Hogwarts who was entirely unimpressed by him, her fellow Gryffindor James Potter was also deeply infatuated with her as well. Obviously Lily ultimately chose James Potter over Severus Snape, and Lily and James got married and had their only child, Harry Potter.
As Rowling explained in a series of tweets, Snape loved Harry's mother, Lily, and his unrequited affection drove him to resent Harry's father, James — and by extension, Harry himself.
During the final battle of Hogwarts, Neville pulls the sword of Godric Gryffindor from the Sorting Hat and beheads Nagini, destroying the last Horcrux. This allows Harry to finally kill Voldemort after the latter's killing curse poetically backfires when Harry uses a disarming spell on him.
However, the prophecy went on to say that Voldemort would mark the child as his equal, choosing the boy that he believed would be the most dangerous to him. Dumbledore believes Voldemort chose Harry because Harry was a half-blood, just like Voldemort.
Voldemort learned that there were two boys that met the requirements of the prophecy: Aside from Harry Potter, the other was Neville Longbottom, who was born on 30 July, 1980, to a pair of Aurors who, like James and Lily Potter, had directly defied Voldemort on three separate occasions.
Harry also happened to be Snape's least favorite student.
There were many things Snape actually liked, but probably only one he ever truly loved. Look no further than his Patronus, which remained a doe even after all those years. Though she left this world, Lily Evans never left Snape's heart. For many, it was proof that he had one to begin with.
A Professor at Hogwarts School of Witchcraft and Wizardry, Snape is hostile to Harry due to his resemblance to his father James Potter, who bullied Snape during their time together at Hogwarts. As the series progresses, Snape's character becomes more layered and enigmatic.
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.
Harry Potter's Biggest Betrayal Makes No Sense. Peter Pettigrew was a member of the Marauders before he betrayed his friends in Harry Potter, but that choice makes no sense. Even more so than the magical elements, the Harry Potter franchise can be defined by its relationships.
In the film, Snape is forced to fight Professor McGonagall after Harry Potter reveals that he was the one that killed Professor Dumbledore (at Dumbledore's bidding, though at the time the fact was unknown).
While most fans agree that Harry is the unrefuted Chosen One, the final Deathly Hallows film (in particular) sways heavily toward highlighting a heroic Neville, revitalizing the debate regarding which boy is better suited for the iconic title.
Snape was revealed to have been in love with Harry Potter's mother, Lily, since childhood. That feeling lasted beyond her death, and into his own final moments. That's why it's so surprising that Snape became a Death Eater.
Voldemort intentionally made six Horcruxes, but when he used Avada Kedavra on Harry, he unintentionally created a seventh Horcrux. Instead of dying, Lily's love for Harry created a counter 'curse' known as Sacrificial Protection and saved Harry.
Ultimately, Dumbledore's death at Snape's hands was a win for everyone involved. The headmaster got the respectful death he wanted, Snape was able to prove his loyalty to the Death Eaters, and Malfoy was saved from Voldemort's wrath.
He finds out for sure immediately after Nagini's attack on Arthur Weasley. This night is significant in many ways. While Harry sleeps, he enters Nagini's mind.
Harry is the Heir of Slytherin (through his mother's side) and also related to Gryffindor (through his father's side) though the current Heir of Gryffindor is Neville.
"The first thing Snape asks Harry is "Potter! What would I get if I added powdered root of asphodel to an infusion of wormwood?" According to Victorian Flower Language, asphodel is a type of lily meaning 'My regrets follow you to the grave' and wormwood means 'absence' and also typically symbolised bitter sorrow.
Dumbledore reveals how thoroughly he loves Harry. Harry is brave, and Dumbledore is proud as any father would be. More than that, Dumbledore succumbs to a parent's weakness; he cares more about Harry's happiness and wellbeing than the wizarding world he is trying to protect.
He protects Harry while pretending to be his enemy. He sacrificed his own life to protect him. It all goes back to Lily: Snape loved her, but she chose someone else, which explains his feelings toward her son. "Professor Snape, Harry." "Yes, him - Quirrell said he hates me because he hated my father.