Tendrils of darkness were now emanating from Vader's back. His face was contorted in pain. Suddenly the darkness enveloped him, covering him from head to toe in churning black matter. It began to be absorbed into his skin and Padmé could tell something was terribly wrong.
Finally, the last of the shadow entered into Vader at the top of his forehead. His head dipped down as if he were asleep. Then a horrible laugh came from him. It was the sound of fire,death, and destruction with no feeling but a primal hatred. Vader smiled and Padmé was horrified. The last bits of her husband swept away. This thing wasn't anything human, it a literal incarnation of the dark side. Vader's irises were a swirling mix of blood red and black and as he grinned he revealed canines as sharp as a nexu's. Padmé back away in fear when an invisible hand grabbed her by her neck.
The power Vader felt was exhilarating. He felt as if he could destroy worlds and build them again in an instant. The power leaked from his very body shaking the ground beneath him. It was a wonderful sensation. The shadow whispered in his ear. Embrace the power, you will have everything you dreamed of. You can make a galaxy without fear, prejudice, and oppression. The power the emperor supplies you is tied to him. You are his willing slave. All you have to do is kill her, she is your weakness. She will corrupt you and destroy your utopia. Almost involuntarily his force choke on Padmé tightened. He was one moment away from killing her when he took the time to actually look at her.
He could see the scar from where the nexu attacked her on Geonosis, he pictured her with her regal Naboo makeup. He saw her curly chocolate brown hair he loved to wrap his hands in. Then came her eyes, he thought he could see her memories in them. He remembered when they first met, when they first kissed, their marriage, and when she told him she was pregnant. The more he gazed into her eyes the more he realized that they held a melancholy that hadn't been there before. He saw more images he saw her grief at Mustafar, her anguish when he would throw a fit, and how that everytime she looked at him she would cringe in fear. He had done this he had broken her. Not just Padmé , he realized, he had broken families, murdered people. For what, for this power, this destructive evil power.
He realized that he didn't want this. All he truly wanted was her and this power was trying to force him to kill her. Why are you hesitating ,said the shadow impatiently, just do it. Enough, he yelled internally, Padmé may be my weakness but she is also my strength. Through her I see what I really am, an emotionless monster. I don't want this. You can take your fucking power with you because I'm done. I'm done trying to convince myself that I'm the hero. My family needs me and I will be there. With that a bright light exploded from Anakin and burned away the darkness.
Padmé dropped to the floor, a bright piercing light blinded her. Finally when it subsided Vader was standing in the midst of it ,but something has changed. She flinched as he ran towards her, yet there was nothing aggressive about him. Startled she noticed that his eyes had reverted back to their electric blue and glistening with tears. "Padmé, I'm sorry. I'm so sorry. I'll be okay if you hate me, but please just let me be the father I always wanted to be. It's okay if you never want to see me again, I just want you to know that I regret everything I've done over the past year. I love you." He choked. Padmé didn't need to be force sensitive to know that he really felt the gravity of his mistakes weigh down on him. She pulled him into a tight hug. " I don't hate you, I know you regret your choice. We can redeem you, together. I'll be there for you, for once I'll be the one protecting you." And together they left that horrible island and returned to the boat.