This is an alternate end of the Last Jedi.

Rey had seen the good in him. And she knew now that despite what she had believed before, he was worth saving no matter the costs.
They entered the throne room together and Rey instantly noticed a difference in him. He was Kylo Ren, Ben had disappeared just as quickly as he had come. When they were alone together, she had seen Ben Solo, felt him. But here in the presence of Snoke he was Kylo Ren. Snoke seemed to have a strange control over his mind.
"Kill her." Snoke ordered, after he had pulled Skywalker's location from her mind.
Kylo drew his lightsaber and turned towards her. His eyes were strange, almost empty of anything but darkness. Before she had seen compassion and a glimmer of light in them, now only darkness remained.
"Ben, don't do this." She begged.
"He is under my control now foolish girl." Said Snoke.
"Ben..." she whispered.
Snoke laughed. "You think you can reach him. He is mine now foolish girl." He said. "But by all means you may try."
Kylo looked at Rey with a merciless look and pointed his lightsaber at her.
Rey looked into his eyes. "Ben..." she whispered. She reached her hand out to him as she had in the hut. The darkness in his eyes faded briefly, but quickly returned.
"Ben, it's me." She said softly, reaching up to touch his face. Her fingers brushed against his cheek and he closed his eyes at her gentle touch. When he opened his eyes, they had returned to normal. "Ben?" She asked softly.
"Rey." He replied. Then he wrapped his arms around her and pulled her into his embrace.
"What?...How?" Snoke asked.
"You are the fool Snoke." She answered. "I know that he loves me more than he fears you."
She felt Ben squeeze her tighter to confirm it. Then he turned to stand between her and Snoke. "She's right." He said, igniting his lightsaber. "And I won't let you hurt her."