IT was when Harry and Hermione were on their own without Ron, and were hunting for the Horcruxes, its when Harry used to wake up with terrible headaches in themiddles of the night screaming sometimes. Hermione's research into Horcruxes at that time concluded Harry was Voldermot's Horcrux.
Dumbledore knew about Horcruxes. He knew how they were formed, what happened after that, etc. He probably got to know Harry was a Horcrux when he saw the Scar on Harry's forehead, but maybe he wasn't sure.
Why was Hermione never affected by the Horcrux like Ron and Harry?
The only logical explanation for this is that Hermione didn't exhibit obvious weaknesses like Harry and Ron. They were unprepared and doubtful from the beginning, while Hermione was prepared for almost every scenario. The moment Hermione erased her parents' memories, she committed herself to the cause.
Notably, Voldemort appeared to be entirely unaware of this split, as he later created a seventh Horcrux in his quest to have six, and continued to target Harry Potter despite him now holding part of Voldemort's own soul.
After witnessing Nagini kill Severus Snape, Harry collected a string of memories from the dying man. During a one hour ceasefire, Harry discovered that he was an unintended Horcrux from Snape's memories. In order to destroy Voldemort, he had to allow the Dark Lord to kill him.
Was Dumbledore raising Harry like a pig for slaughter?
In the Harry Potter and the Deathly Hallows book, Severus Snape does accuse Dumbledore of using Harry. Snape tells the old wizard: “You've kept him alive so that he can die at the proper moment. You've been raising him like a pig for slaughter!” Dumbledore does not deny these accusations, which doesn't help his case.
On confirming Draco's very much alive status, she plainly lied that Harry Potter was "dead". This action of hers was both very crucial and important, not only for Harry's survival but for Voldemort's final defeat as well, thus ensuring Harry was again protected by a mother's love, although indirectly.
But Harry didn't die, and the reason is rather simple: when Voldemort cast the killing curse, it only killed the piece of his soul within Harry, not Harry himself. Harry then saw Dumbledore in a version of King's Cross station, something that Dumbledore said was probably happening in his head.
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.
In the film, she only hugs Harry, and just gives a hesitant handshake to Ron (Note: This was the result of Emma Watson being hesitant to hug both Daniel Radcliffe and Rupert Grint in public view, with her hugging Radcliffe during filming having to be frozen for a few seconds to get the desired effect due to Watson ...
He is simply awed by her and never hides how impressed he is. In the books, Harry never was attracted to Hermione because she was emotional, had average looks and hated his favourite sport, quidditch. He liked girls who were strong, beautiful and played quidditch.
Ron couldn't really control his emotions with the horcrux on him. For one thing, it knew his fears and knew he would be most affected by the idea of Hermione being with someone else, let alone his best friend who he trusts. He felt like he wasn't needed at that point, which is another of his flaws.
Lord Voldemort was unaware that this Horcrux had been destroyed, until he forced the truth out of Lucius Malfoy (who did not know the diary was a Horcrux) shortly after his return to power in June of 1995, due to the portion of the soul being separated from his body for such a long time.
Why didn't Dumbledore tell Harry how to destroy Horcruxes?
Dumbledore Never Really Had Time To Explain How To Destroy The Horcruxes. As much as Harry would have benefited from Dumbledore's knowledge of how to destroy the remaining five horcruxes, there was simply not enough time before his death to do so.
What would Voldemort do if he knew Harry was a Horcrux?
If Voldemort knew Harry was a horcrux he probably would've either convinced Harry to become a Death Eater or torture him into insanity, *Longbottom style*, so he wouldn't kill off a piece of his soul, but could keep Harry to a point where he wasn't a liability to his immortality.
Why doesn't Harry use Avada Kedavra on the horcrux?
To Harry, Voldemort was the epitome of evil, as was the Killing Curse by extension, so he would not use the Unforgivable Curse that killed his parents. It's also believed that Avada Kedavra requires the caster to be willing to commit murder for the spell to work.
How did Harry survive Avada Kedavra the second time?
Harry survived Avada Kedavra multiple times due to the protection of Lily's sacrifice and the love-based magic that surrounded him. The Elder Wand, which Harry mastered, protected him during the Battle of Hogwarts and prevented Avada Kedavra from killing him.
Being a horcrux simply means that Harry had a piece of Voldermort's soul inside of him. That would not grant him immortality. Harry Potter after this part he is no longer a Horcrux, Voldemort destroyed his part of the soul that resided in the boy.
In fact, Lucius' own support to Voldemort is revealed to come only under some form of duress, which is likely Narcissa's Veela Allure. When Lucius turns on Voldemort due to the reveal of his Horcruxes, Narcissa divorces him, taking 75% of Malfoy's wealth with her.
Why didn't Hagrid know that Harry was alive when Voldemort told him to carry him back to Hogwarts? Firstly, he was overwhelmed with emotion. He didn't think about checking the pulse. Secondly, Harry was considerably small with respect to Hagrid.
Lucius Malfoy had a strong dislike of Albus Dumbledore. This is due to two reasons – Dumbledore believed in Muggle rights which contradicted Malfoy's pure blood beliefs. In addition, Lucius was a Death Eater, so he believed that Lord Voldemort was a much more powerful wizard than Dumbledore.
Why was Dumbledore happy Voldemort used Harry's blood?
In Harry Potter and the Deathly Hallows, Dumbledore reveals that this had been the Dark Lord's gravest mistake. By using Harry's blood, he took Lily's sacrifice within himself, providing Harry with a tether to life. Harry could not die while Voldemort lived.
In the Harry Potter and the Deathly Hallows movie, Snape showed how much he loved Harry, providing him with his memories and showing that he saw Lily in him, his last words echoing this: "You have your mother's eyes."
