Voldemort trusted very few people. He openly despised some of his Death Eaters, even the loyal ones like Luscious Malfoy. However, there were a select few that had his trust, and whom he treated with respect. This included Bellatrix Lestrange and Severus Snape.
He felt regret. Killing Snape was not something Voldemort wanted to do. He didn't care for Snape as a person, he saw a valuable ally that had never failed him.
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.
He stopped doubting Snape after he killed Dumbledore. Then he started trusting him completely.
Bellatrix Lestrange (née Black) is the first female Death Eater introduced in the books. Aunt of Draco Malfoy and Nymphadora Tonks. She was introduced in Harry Potter and the Order of the Phoenix. She is the most faithful member of Voldemort's inner circle.
Snape's fierce devotion to and love of his childhood friend Lily, Harry's mother, is the foundation of that loyalty. After Harry Potter and the Half-Blood Prince, Snape's loyalty was a matter of intense debate among the fans.
Besides Dumbledore, he is also the only wizard ever known to be able to apparate silently. Voldemort was also said to fear one wizard alone, Dumbledore.
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.
So, Voldemort had to kill Snape for the wand's allegiance to switch. Voldemort knew he couldn't cast Avada Kedavra with the Elder Wand to kill its master, so he ordered Nagini to be the one who killed Snape. In reality, the Elder Wand belonged to Draco, as he was the one to disarm Dumbledore in the Astronomy Tower.
This would bring him into conflict with fanatical Death Eaters like Bellatrix Lestrange later in life, but Snape was almost immediately forgiven by the reborn Voldemort, because he could provide him with thirteen years of information on Dumbledore and the Order of the Phoenix.
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.
Bellatrix Lestrange was in constant competition with Severus Snape for Voldemort's attention. She was jealous of his magical potential and never trusted him.
For somebody who so clearly loathed Snape for his rather twisted thought, it seems unlikely that Dumbledore would have been very friendly with him afterward. They developed a mutual respect, that goes without saying.
12. Snape's Last Words. In the [Deathly Hallows] book, Snape's dying words to Harry were "Look at me". Right then we did not realize the significance of his words but in the very next chapter when Harry goes through Snape's memories in the Pensieve, he comes to know how much Snape loved Lily.
Some might argue that Snape did it to play the part of a merciless teacher and pretended to hate Harry for having killed Voldemort, so he would not come under suspicion of being allied with Dumbledore. But it's pretty clear that he treated Harry like dirt to get revenge on James.
When the Dark Lord used Avada Kedavra for the final time in the Harry Potter series, the spell deflected due to Harry's ownership of the Elder wand, killing Voldemort with his own signature spell. Following Voldemort's demise, the Unforgivable Curses were strictly deemed illegal by the Ministry of Magic.
Defeating The Dark Lord with his signature spell
Disarming is about defence, not murder. Voldemort was a killer, Harry was not. It was an important distinction for Harry, who had learned so much about Voldemort and seen first-hand the ways in which they were similar.
Horace Slughorn (1997 - present) Horace, after being convinced by Dumbledore and Harry Potter, returned to Hogwarts as the Potions master. After Severus killed Dumbledore and became headmaster of Hogwarts, it was decided that Horace was to become the Head of Slytherin House once again.
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.
Voldemort's greatest fear is death and as a result a boggart takes the form of his own corpse. It is unsurprising that this is Voldemort's biggest fear. After all, he did split his soul up encasing it in various horcruxes just so to keep himself from dying.
Voldemort's weaknesses are arrogance, aforementioned fear of death, and total disregard for things that he does not understand, all of which eventually contribute to his downfall.
Arguably more hated and more dangerous than Voldemort himself, there are many reasons why Dolores Umbridge is the most hated Harry Potter character. Dolores Umbridge was arguably the most evil character in the Harry Potter series, sometimes more so than Lord Voldemort, mainly Harry Potter and The Order of the Phoenix.