This missing scene begins the morning after By the Light of the Moon ...
Damon was leaning against Elena's house as she walked through the door.
"Elena, free again," Damon said with a smirk, "things have changed since yesterday."
"They've changed," Elena said coolly, turning and starting to walk towards him. "I've taken back control of my life. Upset that I'm no longer your prisoner?"
"It wasn't my spell that kept you here," Damon retorted.
Elena had stopped next to him, within touching distance. "But it was your idea," Elena spat back. "I can't believe you turned Bonnie into your little henchman."
"Bonnie was willing to do anything to protect you, even from yourself," Damon said icily. "And she wasn't alone."
"I don't want or need anyone's protection," Elena said angrily. "I'm free now and you're all safe now. I got Stefan out of the tomb, and still protected everyone else I care about."
"At what price, Elena?" Damon asked.
Elena hesitated. She really did not want to discuss this with Damon. "Stefan didn't tell you?"
Damon was no longer glaring, but still upset. "Stefan told me about your deal. Did you tell him everything?"
Elena was not quite as calm and a little defensive. "Yes. I told him everything about my deal with Elijah."
"And what does Stefan say about your deal with the baddest vampire around?"
Elena hesitated and looked down briefly. "We didn't do much talking."
Damon pulled her chin up so their eyes would meet again. "Stefan tells me that Elijah said he will protect you until he is ready to draw out Klaus. Then he will use you to draw him out."
"That's what he said," Elena said, nodding slightly.
"And you believe him?" Damon asked, still holding her eyes.
"Yes," Elena said almost defensively. "Elijah will keep me safe until I am needed. I have everything I wanted. Stefan is out of the tomb. My family and friends are safe from Elijah and Klaus – including you."
"So everyone has what they want?" Damon's skepticism showed. "You have a safe family and friends. Stefan has his Elena back. Elijah has his doppelganger sacrifice."
"No" Elena denied, shaking her head. "Sacrifice was not part of the plan. Using me to draw Klaus out when Elijah is ready to kill him is the plan. He and his witches can keep me safe before Elijah comes, and after he comes as well. And since everyone is always trying to keep me safe, everyone has what they want. I'm safe now."
Damon continued to stare into her eyes. "You're right. Everyone wants you safe. Your family wants you safe because you are their sister or niece. Your friends want you safe because you are their friend. Stefan wants you safe for him. I just want you safe."
"So you're not my friend?" Elena asked, exasperated.
"You don't want me to be your friend – at least that's what you've said before, Elena. And I don't want to be friends with you - not just your friend. You're surrounded by friends already."
Elena realized what he was saying as she stared into his eyes and tried to control herself. She could hear every breath she took before she broke the silence. "You say you want me safe? I'm safe now. You have what you want."
Damon was still staring into her eyes. "You're a pawn in a game between Originals. That's not safe. Not even close."
"I did what I had to do. I'll do whatever I have to. Don't try to stop me again."
"Don't try to off yourself again."
Elena finally backed off slightly, nodding her head, but did not calm down. "That's part of the deal. I made a promise. I'm keeping it."
Damon nodded. His expression was unreadable now. "I made a promise too, Elena. I promised Stefan I would keep you safe. Stefan being back doesn't change anything. Even your deal with Elijah won't change it. I'm going to do whatever I have to to keep you safe."
Damon moved passed her and left her standing next to her house. Elena found herself taking deep, calming breaths as she watched him walk away.
Really, what more do you need. Unification of the television story line with the Vampires and witches and Elena group of stories is so very close. Elena has made a deal with a vampire to protect (she thinks) family and friends. About all that is needed to finish unification would be for Elijah to start send her on errands...