"I was told by one of my hybrids that Elena was leaving town so I decided to use this opportunity and leave town with her, but when I followed the car they told me to what do I find, Katerina, living and breathing and daring enough to come to my town."
She was trying to register his words in her mind, if she plays Elena he will take her anyway but if she plays Katherine at least she could run and Klaus won't kill everyone she loves because he thinks she is Katherine. She decides to play Katherine. She uses the vamp speed that bracelet has provided to run away from him.
But this day Klaus is in no mood let Katerina run so he follows her, she was foolish enough to think that she could outrun Klaus, he stands blocking the door to the car she was trying to enter. "Enough running honey."
He grabs her by the elbow and flashes away with her to a cemetery. "What's this?" she questions looking at the place he had brought her into which looked much like a preparation for a witchy spell.
"A spell so that you'd always be around me" This thing neither scares her nor makes her heart beat any faster because as a matter of fact she had known that Klaus will always be around her for her blood. But she didn't drop the act of Katherine knowing that if he knew she was Elena he would literally take her away forever and this thought scared her so she stood quietly and watched as the witch standing before them cast some spells around them.
She saw the flowers blossom around her and it was so beautiful that for a moment she forgot she was behaving Elena like, but then brought back to her senses she asks the witch, "What kind of spell are you doing?"
The witch eyes her and says, "Today the orbits of Jupiter and Saturn are such, that they would appear as one in the night sky. It is a celestial event occurring after 400 years and before that it occurred in 1223. It is said that if two souls are united during this event then they are united for forever and no one can separate them."
"I don't want to unite my soul with him."
The witch replies, "Oh it's not a bad thing Katherine. Consider it as marriage, only that it can't be undone by any sort of divorce or annulment, this is a magical unison which will unite the two of you for forever."
"Wait, I am not Katherine, I am Elena."
Klaus looks at her and says, "Nice try Katerina but Elena is at home, getting ready for school. See" He says this showing her his mobile screen which shows Katherine getting ready in her room.
"You got cameras installed in my room. You freak."
"Not your room Katerina, in Elena's room. I had to make sure that she wasn't planning something against me."
"This is clear invasion of privacy Klaus. It is unacceptable."
"Why do you care so much about Elena? I think you should focus on our unison."
"Why do you want to marry Katherine anyway."
"Don't talk about you as the third person Katerina and yes just for you to know, this marriage means nothing to me more than a way to torture you for eternity."
"Well then I guess you will fail because I am not Katherine. I am Elena."
"I saw what you did. Elena wouldn't kill so many and then celebrate so don't even try to ruin it for me."
"Klaus" the witch says, "The event has started,hold her."
Klaus holds both her elbows.
"Wait, Klaus, this is marriage and it can't be undone, listen to me, I am Elena, I was informed my parents were alive and I came here to save them, Bonnie spelled my mother's bracelet so that I'd have vampire abilities except hearing for next twenty four hours. Once the time is up you can see for yourself I am Elena. I am not Katherine."
His grip on her elbows loosens he seems to be believing her.
"Klaus don't leave her or else the ritual will fail."
Elena looks at him with her eyes, "Klaus get into my head and see if I am telling the truth. I came here to save my parents that's it but I am not her. I am not Katherine."
Klaus closes his eyes and enters her mind. He enters her sub conscious and sees how she made a perfect plan to rescue her parents and had also got Katherine involved so that she could avoid his hybrids following her. He is busy seeing more when his visit to her sub conscious is broken by the words of the witch.
"Congratulations, your souls have been united and you are married. Nothing can separate the two of you now."
Elena looks at the witch and says, "No, No, this is not possible."
"Oh but it has happened. Congratulations, you are officially his wife and only he has claim over you."
The witch disappears into the shadows and they are both shocked for a moment. They stare each other in an awkward silence when Elena says, "We will not tell anyone that this ever happened, let it be buried here itself."
Klaus still stays mum he doesn't know what to say. At first he had decided to abscond away with her and now that he and only he has the claim over her all he wants to do is return with her to Mystic Falls, he doesn't want to run away with her because he feels that he doesn't need to.
He drives her back to Mystic Falls. During the whole journey there is an awkward silence between them and when the car reaches her home puts the brakes. She walks out without looking back at him and he also doesn't bother to look at her and drives away to his home.
This marriage means nothing to me, he convinces himself and she convinces herself too that it was nothing. A week passes by and neither of them have uttered a word about what happened between the two of them.
One day she was walking home from school when a random guy passed a few lewd comments on her and how she wished that she was not alone or would have taken the ride home when Matt offered her.
The other day she reads the newspaper and finds the same guy died due to animal attack, a wolf to be specific.
It was his turn now to show up at her doorstep, she opened the door and said, "What do you want"
"We need to talk" he says.
She passes the threshold and points to the swing gesturing that they can talk there. They sit over there and talk, mostly useless things and nothing. They sit there for almost half an hour when Stefan enters and just looking at this sight he grabs her wrist and before she could say anything he vamps her into her house.
This was enough to enrage Klaus, to make him feel like Stefan touched something which he shouldn't have to but then his vampire ears hear her yelling at Stefan. "Stefan, how dare you?"
S, "How dare me" he pauses then says "you were there sitting with Klaus like an idiot, you should be thanking me that I saved you from him before he did something drastic to you."
E, "Well, I am sorry to disappoint you Stefan but I can make my own decisions, you don't have to make them for me."
S, "Yeah, but you do mistakes and sitting with Klaus like that was more than just a mistake, it was foolish."
E, "No, whatever it was, it was my choice and you don't have to tell me what to do."
By this time Klaus is staring inside through the window where he sees Stefan take off her vervain necklace. "How dare he remove her jewelry" Klaus thinks. Then Stefan compels her, "Stay inside and don't come out unless I ask you to."