This is because his mother, Merope Gaunt, gave Tom Riddle Senior (Voldemort's father) a love potion. Because Voldemort was conceived under a love potion, he isn't able to feel or express love in his life.
It's made explicitly clear that Voldemort's biggest flaw is his inability to feel love, that this trait is what drives his villainy throughout the series. And that means he was practically destined to grow up evil because of what his mother did.
Rowling also stated that Voldemort's conception by influence of Amortentia—a love potion administered by his mother, a witch named Merope Gaunt, to the Muggle Tom Riddle—is related to his inability to understand love; it is "a symbolic way of showing that he came from a loveless union—but of course, everything would ...
It's a power created by an unusual combination of circumstance and personality and Voldemort underestimates it for the same reason he fears Dumbledore – because he can't understand any motivation other than his own.
Since Voldemort had no capacity for love or even understood it, he never had love for anyone. The closest thing to affection he has ever shown anyone is to his snake, Nagini, which he turns into a Horcrux.
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.
Voldemort was incapable of love because he was conceived under a love potion, so whatever he felt for Bellatrix, it wasn't love. She was his best Death Eater, and he may have respected and liked her more than anyone else in the world. What he felt for her was probably the closest thing to love that he would ever get.
Voldemort can not comprehend love, and so it destroys him to touch Harry because Lily's love for her son runs through Harry's veins and body. ems Harry burnt Quirrell's face when he touched it.
She was what Voldemort would have been if he had been raised in a loving, privileged family. She was what Voldemort wanted to be for she was loved, Pureblood, and an aristocrat as well. He probably saw that and her potential and decided to take her under his wing, to make her his.
Snape loved Lily deeply: through their years at Hogwarts; through her marriage to another wizard, James Potter; through his time as a Death Eater; and long after her murder at the wand of Lord Voldemort.
IN "CURSED CHILD", SHE AND VOLDEMORT HAD A DAUGHTER
Harry Potter and the Cursed Child dropped a major revelation: Bellatrix and Voldemort have a secret illegitimate daughter together. That means Bellatrix cheated on her husband Rodolphus.
Voldemort hugged Draco as an improvisation and it wasn't planned. Even Tom Felton (Draco Malfoy) was caught unaware which increased the effect. In Harry Potter style, it was like a welcome for Draco, but as Voldemort had never known love, he didn't know how to hug him very well. Thats why they had the awkward hug.
Voldemort always feared death – as an 11-year-old he scorned his mother for succumbing and dismissed it as weakness – and his Horcrux journey was all about achieving immortality, keeping himself alive with no thought for anyone else or even his own soul.
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.
The biggest revelation in Harry Potter and the Cursed Child was that Lord Voldemort had a daughter with Bellatrix Lestrange, who was named Delphini.
As mentioned in the book, Dumbledore was 'the only one he ever feared'. Deep down, Voldemort knew that Dumbledore was more powerful than him. He had superior magical capability and possessed important information about Voldemort.
His reaction to Bella's death was akin to his reaction at the loss of the Cup, which was when he realised that his own immortality was jeopardised amidst war and his own death could have been near.
Bellatrix Lestrange Killed her own cousin, Sirius Black: She killed Sirius (who was her cousin) during the battle at the Department of Mysteries. She was remorseless and was cackling in glee after she had murdered Sirius.
Delphi was conceived from a liaison between Voldemort and Bellatrix. She was born at Malfoy Manor, shortly before the 1998 Battle of Hogwarts. As Bellatrix and Voldemort were both killed in the Battle and Bellatrix's husband Rodolphus was imprisoned at Azkaban, Delphi was raised by Euphemia Rowle, a Death Eater.
Harry Potter, I now speak directly to you. On this night, you have allowed your friends to die for you rather than face me yourself. Lord Voldemort : There is no greater dishonor. Join me in the Forbidden Forest and confront your fate.
He is greatly depleted by the physical strain of fighting the far stronger, evil soul inside him. Quirrell's body manifests burns and blisters during his fight with Harry due to the protective power Harry's mother left in his skin when she died for him.
Quirrell didn't use the Killing Curse on Harry, because Voldemort said “use the boy” to get the Sorcerer's stone from the Mirror of Erised.
The most speculated reason why Voldemort wanted a child is that he needed a backup relative to help him create a new body. Voldemort is immortal, but it would only take a stray curse to destroy his body and send him back to the pathetic state he was living in before the events of Philosopher's Stone.
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.
As much as Bellatrix loves Lord Voldemort, she equally hates Harry Potter, considering him the greatest threat to Voldemort and his plans. She will do anything to assist the Dark Lord's desire to defeat Harry.