why did sam let dean turn into a vampire

Dakota is Gabriella Lowery's only daughter, cherished since childhood, who later marries Chase Boone and moves far away. After marriage, Chase neglects the family and has an affair. Although Dakota suffers, she never complains to her mother. At her child's one-month celebration, Dakota hopes for her mother to attend, only to discover that everyone believes Gabriella has passed away and has kept this from her. Dakota refuses to believe it and argues with the Boone family. Years of unhappiness make her consider divorce, but Chase is unwilling. At this point, Gabriella arrives and, seeing her daughter's thin appearance, blames Chase. Still, she is willing to give him another chance. Unfortunately, the rift in Dakota and Chase's relationship is beyond repair. Dakota decides to divorce, and Gabriella supports her. Chase recognizes his mistakes, chooses to let her go, and expresses his intention to change, waiting for Dakota to return.

At 15, Evan Jose met the love of his life. Having been diagnosed with a rare illness since childhood and given no more than 30 years to live, Evan tasted a candy from Tina Skyler, and that very candy drove away his misery. Over the years, Evan kept supporting Tina, watching his little moon grow into an exceptional dancer. When he had only 7 months left to live, he made a selfish decision. He married her, aiming to love her silently, as he had done for the past 14 years. But he forgot that the look of love can't be hidden. His feelings grew stronger. He reveled in her cute yet awkward attempts to please him, was captivated by her unintentional touches, and couldn't bear the thought of any other man near Tina. With his life slipping away and his love impossible to let go, a countdown of love began.

When Gilberto was struggling with poverty, he proposed to Yvette, drafting a bold agreement that if he ever betrayed her, he would leave everything behind. Five years later, now the chairman of a successful pharmaceutical company, Gilberto's life seemed perfect. But Yvette, pregnant with twins, couldn't ignore the nagging feeling when she saw him behaving intimately with his business partner, Freya. Unable to shake the suspicion, Yvette followed her husband and uncovered the heartbreaking truth—Gilberto had traveled miles just to cheat with Freya over a casual barbecue. On their return flight, disaster struck. The plane's engine malfunctioned, forcing an emergency landing. In the chaos, Yvette lost her babies, but Gilberto had no idea she was on that same plane. As Yvette was rushed to the hospital, Gilberto, frantic to see her, arrived only to find a divorce agreement waiting for him. Consumed by regret, he did everything he could to win her back, but Yvette had already moved on. She no longer loved him.

Jeana Dylan and her husband were in love for 7 years and married for 5, only to find him having an affair. She then discovered that the past 7 years were all a scam. The man she slept next to every night was only after her family's wealth. After her pain, she decided to retaliate. She joined forces with the mistress, set a trap for her husband, lured him into investing, and made him return all the transferred assets. She also uncovered her husband's secret family and son outside. When everyone was gathered, Jeana let them fight amongst themselves. In the end, Sean Finn was jailed for attempted murder, Lucy Leon lost everything and almost got killed by him, Nina Finn was drowning in debt and forced to pay with her body, and the malicious mother-in-law suffered a stroke and was left unattended. As for Jeana, she reunited with Aaron Grant, the man she liked 10 years ago, and started a new life.

At eighteen, Clara Quinn used up all her savings to buy herself a burial plot, ready to leave the world behind. Taken in by the Quinn family as a child, she spent years giving blood to her frail adoptive sister, Tessa—only to be met with cold shoulders from her adoptive parents and betrayal from her fiancé, Elias Payne, whose tenderness was just a cover for using her as a walking blood supply.Crushed by the truth, Clara faked her death and disappeared. She eventually found her real parents and true love in Lucian Vale,beginning a brand-new life filled with hope. But the Quinns and Elias, drowning in guilt and regret, refused to let go.In the end, with the love and protection of her real family,Clara finally stepped out of the darkness. She married Lucian and found lasting happiness, while those who once used and hurt her could only watch from a distance,haunted by what they had lost.

Camille Sloane discovers while reapplying for her marriage certificate that she's still legally unmarried—her husband Malcolm Rourke's actual registered wife is his assistant Sierra Lowell. Shocked and heartbroken, Camille learns everything was orchestrated by Malcolm and witnesses him flirting with Sierra at the office.She decides to apply for immigration to leave him forever. Though Camille wants to leave peacefully, Sierra refuses to let her go, provoking her at Camille's birthday banquet and even self-harming to frame her. Camille fights back, but Malcolm wavers and repeatedly hurts her for Sierra's sake.Completely heartbroken, after receiving immigration approval, Camille prepares to leave but is kidnapped by Sierra's scheme and subjected to ninety-nine lashes by Malcolm, who doesn't know the truth. In her fading consciousness, Camille discovers her parents' deaths hide deeper secrets, and she vows to make Malcolm and Sierra pay the price.

Mark Dalton engaged in charity work and financially supported Carla Fulton, who was in poverty. Carla mistakenly believed that she held a special place in Mark's heart and gradually became arrogant. Five years later, after graduating from university, Carla, in an attempt to show off, lied that Mark was her brother and brought her classmates to intern at his company. Mark, busy with the company's IPO, delegated the task of arranging the internships to his subordinates. The subordinates did not dare to stop her, allowing her to act recklessly within the company. She fired the technical team and declared herself the chairperson. When Mark was negotiating a partnership with Saturn Group, Carla's outrageous behavior caused the deal to fall through, and Mark was so furious that he fainted and was hospitalized. Carla continued her reckless actions, pushing the company to the brink of bankruptcy, and even planned to sell it. After Mark regained consciousness, he exposed her lies. Resentful, Carla teamed up with a rival company to sabotage Mark's projects. In the end, Mark uncovered the conspiracy, Carla was arrested, and the company successfully went public with the support of Saturn Group.

In high school, Thorn and his boyfriend Jett had their intimate video secretly recorded and leaked by the school bully, Pitch. Unable to endure the public scrutiny and domestic violence, Jett took his own life. Driven by revenge, Thorn underwent a gender reassignment surgery and became Rose. She entered Pitch's life to get close to him. There, she discovered that Pitch's bullying actually came from his own twisted crush on Thorn. She also found out that Pitch's father-in-law, Thanes, was the one who had murdered her parents. During her pursuit of revenge, Rose saw her best friend, Jennis, brutally killed by Pitch's wife, Denee. Pitch also died when he took a bullet for Rose. Denee couldn't take this anymore, and she turned against her own father. In the end, Rose let go of her hatred. Guided by Jett's spirit, she found a way to move on with her life. This violent quest for revenge exposed a powerful family's drug crimes and ended a cycle of hatred that had plagued three generations.