This missing scene contines the scene near the end of Season 5, Episode 15 - Gone Girl...
Elena looked questioningly at Damon. She wasn't sure what the deal was with the syringe she had found on her, and wasn't sure he would know either. He was scowling a little and staring at it.
After a few seconds, she pushed herself up and tentatively took a step towards Damon. By this time his eyes had moved from the syringe back to her eyes, though she couldn't really tell what he was thinking.
"Don't you have something to tell her, Damon?" Elena heard from beside them. Stefan. She knew he was in the room with them. Maybe he had even said something before now, but his tone bothered her.
Elena glanced at Stefan, but only briefly. His expression wasn't any better than the tone of his words had been. Plus, when she looked at him, she felt a bit of a burning in her throat. She quickly turned back to Damon.
Damon's expression had changed as well. When she first opened her eyes, she could tell that he was glad to see her. When he saw the syringe, she could tell that he was concerned about it. She could read this expression as well, but hoped she was wrong.
Damon spoke now. "You know that, while you were gone, Katherine was…"
"She had control of me," she said when he didn't finish. "of my body. I know."
"Yeah," Damon said. "Well, it seems like the first thing she did when she had control of you was to break up with me."
She quickly glanced at Stefan, he had an expression she would call smug. She quickly looked back to Damon.
"You had already broken up with me," Elena said, flinching a little at the memory.
Damon shrugged, though his expression was getting a little harder, a little more like she feared. "I changed my mind. I wanted to get back together."
Elena found herself tilting her head slightly in confusion as she processed this. "Back togeth..." she stared to repeat softly before she was interrupted by Stefan.
"But Katherine put an end to that. Then what happened, Damon?"
Elena thought she might have heard a bit of a sneer in his voice, certainly there was a bit of the arrogance towards Damon she had so often seen in Stefan. She didn't bother looking at him this time, she just lifted her eyes to meet Damon's.
Damon's expression and tone were changing again. "Then I got together with Enzo and we did some ... some damage."
His expression by this time was familiar, she had seen it on him too often. It was the expression he wore when he was telling her how wrong he was for her.
"He means they killed Aaron Whitmore," Stefan said. It was as if he couldn't wait to get it out.
She pulled her eyes away from Damon and looked at Stefan. She couldn't look at him very long. She could stand the 'I told you so' expression that his face had, but she felt a burning in her throat again. She wasn't sure what that was, but she looked down instead. She closed her eyes and started to rub her head with her fingers.
"I took out Dr. Evil as well!" Damon snapped at Stefan. There was a definite sneer in his voice. "And a few others."
Elena looked at him now. He had been this way around her before, and she could deal with it, but this time Stefan was here, and he was only making things worse.
"And you used Jeremy to try to get to him. He nearly died. Enzo would have killed him."
"Stop!" Elena said, raising her hand and turning briefly to glare at Stefan. She felt a tingle in the throat again so turned quickly back to Damon.
"Is it true?" She asked the older brother.
Damon's expression didn't change as he stared right back at her. "Yes."
She cringed a little, closed her eyes, and nodded slightly.
"You see, Elena?" Stefan asked. "He loses hope, and what does he do."
She looked at Stefan again, trying to make her expression blank. This was typical Stefan, so tormented by his past that he would only hunt animals - as long as he was in control. Yet still so quick to accuse Damon of any infraction. So quick to assume she would reject his brother for any slipup.
"People die because of him, Elena," Stefan added.
The burning in her throat was increasing, she almost took a step towards Stefan, but shook herself and looked at Damon instead.
"How many, Stefan?" she asked. The burning was gone now. Damon's eyes, she decided. Damon's eyes made the burning in her throat go away.
"How many died because of Damon while you were gone?" Stefan asked. "Aaron, Dr. Maxfield, and a few others. Five? Maybe more."
Elena's eyes remained fixed on Damon as he spoke. Damon's eyes were fixed on her as well. He just stood there expecting the worst from her. This had happened before, and she knew what to do about it. Still, it was annoying that Stefan was there, insisting on doing all he could to upset her, to upset them.
"How many died when you last went Ripper, Stefan?" Elena asked, clarifying her question. Her eyes remained fixed on Damon. Damon had tried to get back together with her? There were other things to deal with, but this was what was consuming her mind.
She managed to break away from Damon's eyes and turn on Stefan. His expression wasn't smug anymore. He was shocked.
She took a step towards him. "Do you even know? You've made lists before – I saw the list of your victims in Chicago. Did you do that when you were with Klaus - did you make a list this last time, I mean? In Tennessee?" The burning in her throat was back, but she was caring less and less about that.
Stefan didn't say anything, and she was starting to take another step towards him when she head "Elena," from Damon.
She turned and looked into his eyes. She was sure now, they were the key. They were to way to stop the burning she felt in her throat when she looked at Stefan.
"Are you OK?" Damon asked. His expression was totally different now. He was concerned – concerned about her.
She nodded, her mind returning to the thought that he wanted to get back together with her. That was what she wanted to concentrate on just now.
"I only went with Klaus to save Damon," Stefan said. "And to protect you!" he added.
Stefan sounded bitter now.
She could have turned back to Stefan, but the burning in her throat was getting worse every time she looked at him. She was also feeling a need to just go for his throat, though she thought that it might be just because of his intrusion on her reunion with Damon.
"I know why you went with Klaus," Elena answered, though she continued to stare at Damon. "And I'm grateful that you saved him, protected me." She risked looking back at him, though only long enough to add "I'm also grateful that Damon and I were able to pull you back out of there, like Lexi did for you. More than once."
She heard Stefan make an unpleasant noise as she turned back to Damon. Damon's expression was a combination of concerned and confused. It was still hard as well, as if he hadn't finished telling her how wrong he was for her yet.
"You know why Lexi isn't around anymore," Stefan said. Then he muttered "and you still have no idea who Damon is."
That got to Elena. She thought that she was being reasonable, Damon was just being Damon. It was Stefan who was being a jerk.
It was harder each time she did it, but she managed to pull her eyes from Damon's again and faced Stefan. "I know why Lexi is gone, Stefan, and I know who Damon is." She tried to ignore the burning in her throat as she approached her Ex. "Not that I haven't learned some things about him recently, but I know who he is. What I'm having trouble with is who you are, and who I am."
She held Stefan's eyes as she reached him. She heard him say "You don't know everything, Elena" while she was trying to think of a way to just send him away. His face was a little concerned, but she couldn't concentrate on his face.
"Elena?" Stefan asked again as she realized she couldn't control it. She was biting into his neck before she knew what she was doing.
It was kind of blur for Elena after that. She knew Stefan was making noise, but paid no attention to that. Damon was pulling at her, talking to her at the same time. When she finally responded, finally let her grip on Stefan go, she realized that the burning in her throat was gone.
Damon pulled her away and pushed her onto a couch, though he sat next to her and kept his arm around her in a firm grip.
She began to shake as she realized what she had done. "Stefan, no. I'm sorry. I'm so sorry. I didn't mean to…"
Damon put a finger to her lips to silence her. She stopped but couldn't stop staring at Stefan, at what she had done. At least he was awake, though he was rubbing his neck, and pain showing on his face.
"I guess we know what was in the syringe," Damon said.
His face was serious when she looked up into his eyes and asked, "What?"