Mostly because the man Claire fell in love with was Sylar the serial killer who had killed many people and he even almost killed Claire not to mention he killed Claire's birth father Nathan Petrelli. Noah got Clarie to believe that Sylar just wanted to get close enough to Claire to get what he needed then he would kill her.
Claire had him where everybody wanted him she had the gun pointed to Sylar and he was totally helpless. She could have pulled the trigger and this problem would be solved but she didn't. She saw the good in him agian she saw the Sylar that everybody else needed to know the sweet, loving, and caring side of him. That was her chance to please her father and everyone who has been effected by Sylar but she chose to not kill hm so she could be happy for once in her life.
From that moment on she never wanted anything to ever harm him again. Clarie let him go and she didn't kill him she couldn't she went over and helped him up off the ground. Sylar felt the same way about Clarie and it wasn't an act it was the real thing for them. Sylar saw the hurt and worry in Claire's eyes and he wanted to tell her and show her how much he loved her.
Sylar went up to Claire and kissed her their kiss was soft and passionate Claire wrapped her arms around his neck as he pulled her in closer to him so that there was no more space between them. When they broke appart it was like Claire forgot how to breathe and she didn't want to let him go. Then they looked at eachother and Claire gave him a smile then she moved away from him
"You have to go my dad is expecting to find you in here dead" Claire said pushing him away
"Come with me Claire. Let's go and start over I changed and I can control myself now. So lets go just you and me together" Sylar told her gripping her arm
"I want to I really do but what about my family? I can't just leave them I love them" Claire sad looking down hoping she wouldn't cry
"Claire we can start a family of our own. And if your dad loved you he wouldn't care if you came with me and he would just want you to be happy. Now we don't have a lot of time till your father comes in that door" Sylar said pointing towards the closed door across the room
"Yes but I want to stop by my house and get some things and then I will go with you and be happy okay?" Claire replied smiling
"I'll be in front of your house in thirty minutes okay?" Sylar asked dropping his forehead to Claires
"I'll be there" Claire replied
Sylar kissed her and then they heard a noise come from the door they broke apart and looked at the door. Claire pushed Sylar away and he took off out the window that was there in the room. Claire got on the ground so it would look like Sylar and pushed her and got away all on his own also so she didn't have to explain much to Noah. When the door finally opened Noah ran over to Claire and helped her up onto her feet.
"Claire are you okay?" Noah asked looking her over
"Yes I'm fine I can't get hurt remember? He got away can we just go home please?" Claire asked trying not to smile about what would be at her home in a short while
Noah just nodded and then they walked out of the building. They went to Noah's car in the parking lot and Claire got in as fast as she could and then Noah got in a couple minutes later. Noah was looking for signs of Sylar to see if he had been around his car. Then he got in the car and drove off back home.
