As J.K. Rowling writes, Draco envies Harry's unasked-for fame and his flying ability and makes petty attempts to undermine him, like staging a duel so Harry will get caught and pretending to be a Dementor to frighten him. But it's his attitude to others that really highlights Draco's cruelty.
Malfoy hated all the attention Harry recieved . Malfoy thought Harry was a dark wizard, he tried to befriend Harry but he refused because of the way Malfoy treated Ron whom he already made friends with. That's why Malfoy hate Harry for turning him down.
He's Really Jealous Of Harry
While it may seem as though Draco simply has an outright hatred for Harry from the start, it goes deeper than that. He is, above all, jealous of Harry and a coward. Draco was brought up believing that he and his family are the best that the wizarding world has to offer.
Malfoy spots Harry and casts a Cruciatus curse; Harry, defending himself, using the Half-Blood Prince's Sectumsempra spell without knowing its effects. To his horror, it gashes Draco's face and chest, spilling his blood everywhere. Moaning Myrtle flies off, screaming.
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.
Not knowing whether Draco was alive or dead, Narcissa chose to lie to the Dark Lord rather than risk losing her son. When Voldemort asked her to check if Harry was dead and she realised he was, in fact, still breathing, Narcissa seized her opportunity.
“Harry was constantly crushing on Draco. He just couldn't hide it.” In the books and movies, Harry and Draco are constantly at each other's throats, given that Draco's parents are Voldemort supporters and the evil wizard killed Harry's parents.
Finally, Lucius, Narcissa, and Draco never fled Hogwarts with the other antagonists and losers. In The Deathly Hallows novel, the Malfoys defect from Voldemort's army, betraying the other Death Eaters.
Having gone through the horrors of the second wizarding war as a Death Eater, Draco abandoned the pure-blood beliefs he was originally devoted to, and grew to become a better person than he was in his youth, growing more tolerant and accepting of the non-pure-bloods of the wizarding world.
Despite being a valued Death Eater in the days before Voldemort fell following his attack on baby Harry, Lucius stumbled out of favor with the Dark Lord when he squandered Riddle's diary (secretly a horcrux) in Chamber of Secrets and failed to obtain the prophecy in Order of the Phoenix.
Voldemort had waged psychological warfare on the Malfoys, and knowing that he held total power over them- he fully took advantage of his situation. He wielded his power to the point that they no longer wanted to follow him- but they were in too deep.
Specifically, Draco was jealous of Harry. It was easy to miss because Draco didn't often show his emotions, modelling himself on his cold, confident, calculating father, but J.K. Rowling has confirmed that a lot of his enmity towards Harry stemmed from envy.
Draco Malfoy was more of an obnoxious and petty brat than a genuine threat to Harry. Their dynamic was not the best because they were children encouraged to fight each other by almost every adult around them; even the Hogwarts House system prompted them to compete.
Harry Potter and the Philosopher's Stone
But there was something else about Malfoy – first in Madam Malkin's and then later, on the Hogwarts Express, that we argue meant that Harry would never have considered being his friend – Draco liked to make people feel like outsiders.
Salazar Slytherin did not think muggle borns should be accepted to Hogwarts, and the Malfoy's and Voldemort followers strongly agree with this. So Draco was probably a bit scared to go against what his family thinks. Overall, a lot of Draco's meanness is because of his family.
Faced with reality, Draco finally understands his whole life, his whole system of “right and wrong,” is not correct. He was just a manipulated boy. Rowling is adamant that Malfoy didn't deserve a redemption arc because there was never a “heart of gold” underneath his pompous act.
Draco had several reasons for lying to Bellatrix, including the fact that he was never a bad person. Moreover, he no longer found working for the Dark Lord appealing and hated how Voldemort treated his family. He did not intend to harm anyone and believed Harry was the only person capable of defeating Voldemort.
The Malfoys are able to avoid serving time in Azkaban, as they provide evidence that helps the Ministry track down the Death Eaters who had fled after the war.
9 Times Harry Kissed Draco and the 1 Time Draco Kissed Harry.
I think Draco was overwhelmed both with Katie's death and the fact that he was forced to be the one to kill Dumbledore as a way of Voldy punishing his family due to his beef with Lucius.
Draco Malfoy - Voldemort
In this game, it becomes clear that Draco Malfoy's Boggart is Lord Voldemort. Draco's fear of Voldemort likely comes from different reasons than others have. Most fear Voldemort taking over the world. Draco fears Voldemort intimidating and manipulating the Malfoy family.
Draco says she suffers from a “blood malediction,” which ultimately ends up killing her the summer before Scorpius's third year. While it isn't clear that Astoria's and Nagini's conditions are the same, Draco's description of her illness seems to match up with new information from Rowling's tweets.
Telling him the truth doesn't risk her life and neither does it risks Draco's life, who would still be a minor servant and while at the bottom of the Deatheather's hierachy, still be a part of it. Not knowing whether Draco was alive or dead, Narcissa chose to lie to the Dark Lord rather than risk losing her son.
Draco's father is a Death Eater. As a result of the big battle in the Ministry of Magic in Book 5 and as a result of failing to steal the prophecy of Harry from the Ministry of Magic, he's spending his time in Azkaban Prison.