Help me out to understand... *Spoilers all over the Place*

Looking at the Quotes, I realise that I didnt understand all The english.. could help me a little bit...

Jack: She looks at him again, then with a painful smile she switches off the light and leaves. The room is dark again. Claire is gone. The following day I asked her to wait for me, I never saw her again; I was arrested a few moments later. No doubt believing it was all another lie, she'd slit her wrists with a knife. As Charlie would say, the Gods are on my side; the police found her, saving her life just in time.

Jack: Did you read it?
Claire: Yeah, I did.
Jack: And?
Claire: I don't blame you you know, I never did.
Jack: [swallows]
Claire: And going to the dark side of the moon wasn't the worst thing.
Jack: What was?
Claire: Going alone.

So, She tryed to kill herself because she thought it was another Lie. Ok, got that. Then her "going alone", sounds like she wished that during her experiment? (still unclear about that) , she wished he were along her into that dark World..?

Anyway, Still the Questions why she did go so far "alone" into the Prostitute Thing.. and the End why after she reading the Notes, reacted kindda cold..

Every passing minute is another chance to turn it all around. Sofia, Vanilla Sky

1) I think she was madly in love with him, but at the same time there was something else that was very wrong with her. She was this girl that had lived forever in this perfect little box, perfect grades, perfect school, perfect boyfriend. I think Jack was a symptom of her real problem. She was rebelling against everything she was, he just happened to be the switch.
Also, I think her first moments of true happiness are with Jack. And, for any of you that know what it's like to first feel happiness, it's not a feeling you are ever willing to let go of.
There is a converstation that explains her "conversion to prostitution". After she and Jack break up she is walking with Jeff (Diehl) and he says that she is a "foreign body, and foreign bodies get rejected." So, what do you do if you're in a foreign land? You follow the old saying: when in Rome act like the Romans.

2) Cold? Jack was both the best and worst thing that ever happened to him. I think she simply doesn't trust herself with him and doesn't know how to react to hearing his voice again. It's easy to deal with him when he's unreachable, but suddenly here he was again, and she feels this flood of feelings - she goes into shock. It's not like she can jump up and hug him - their relationship was never like that. They need to start completely over. The end of the movie reminds me a lot of their first encounter. He trying to woo her and her replying with her quips. The relationship is fresh again they are "writing a new book."

I think the reason she tries to kill herself is she is completely hopeless. She is on the dark side and her last ditch effort was to be with Jack. When he doesn't come home she has gone to the dark side and she has gone alone. Which, as she says at the end of the movie, was the worst part.

First let me quote Jay-Z: Song Cry

"They say you can't turn a bad girl good
But once a good girl's goin bad, she's gone forever..
And more forever
Sht I gotta live with the fact I did you wrong forever"

Claire's pain build up through the whole movie from the moment Jack wasn't returning her calls. She gave her whole soul to this man. A man who's not from her world but she felt in her heart that he was more from his world, that he didn't belong in his world. Claire going into prostitution all the way was her way of trying to forget Jack and the pain she felt inside as the same time being vindictive and revengeful. In reality some woman run to sex (not so much prostitution) because they are trying to forget the man they love. Also, Claire entered prostitution even more when Jack's friends kept reminding her that they are from two separate worlds- see scene at the bridge and resturant with Charlie. Her committing suicide is the way the film shows you that she's weak and she can't handle Jack's world. Claire has a conscious and the movie was showing that she went through something tragic with her eyes being black and blue. While she was in front of Jack with her face beat up she pretended to be strong. She didn't want to show him that she was weak and that she wasn't part of his world. Jack not returning back that night he got arrested brought her to her boiling point. All that was boiling inside her had brought her to commit suicide.

A love like there's doesn't end, even after 2yrs. See its like another West Side story. Two different worlds coming together. He showed her his most intimate space. Remember he wouldn't let her in and after 2yrs he let her in because he recognized how much he cared for her and done her wrong. All she wanted to do is be with him and love him. The movie ends with a slight of hope that their love would continue. This type of passionate his hard to come in ones life. Only a few humans get to experience it and only a few of those experience last. This is why its hard to be with someone that you feel strong love and have great passionate with. This is why some humans settle because they don't want to go through the same roller-coaster again.

Check out the rest of Jay-Z's lyric for Song Cry
http://www.azlyrics.com/lyrics/jayz/songcry.html

she grew from that relationship and it was a painful growth!!! He put her through a lot Did you see the whole movie? and I guess she wanted to protect herself from him unless he just wanted to use her again . I understood completely . First off, she thought she was too smart to get involved with this guy in the first place. She was going to college and she thought she knew it all including what this guy wanted !! The guy picked up on this a decided to manipulate her cause he had street smarts !! She started getting manipulated by him and she felt her self getting drawn in. The next thing you know she is pulling off jobs with him. As far as him prostituting her she did that because he had drained her of any self worth she had and he was angry with her for doing it with that guy but she wanted to get back at him. Then she tried to commit suicide because she couldnt take his manipulations any more and on some level I think he did care for her. But when he went to jail,he learned to really love and appreciate her. So when he came out, she was older and wiser. and shes not gonna take anything from him anymore and he changed too

Ok, I think Claire was cold to him because he had put her through a lot. She had grown up and Jack was really her first. I could really identify. You do get like that. In my situation, I was pregnant and this man was totally dogging me but I would have done or gone through any situation just for him to love me. The light bulb went off when he told me ' you think you're the only one? , you are one stupid bi.... and I mean he was cold and he laughed. When he went to work that night and it was snowing on the ground really hard, I changed the all locks on the door and I was still crying while I was doing it. I had enough of him when he got home that night he banged on the door but I would not open it... finally he told me he was sorry we can work it out and still I would not open the door.
That is how I see Claire... she still had those feelings for him but she wasn't willing to 'open that door' to get hurt anymore. He realized what he had in Claire but it was too late well maybe not but for them to be together it would have to take a lot of time and soul searching
As for me, he still doesn't 'remember' or recall saying that to me but I do. The people that hurt you have convenient memories too

The best line to illustrate WHY Claire did what she did is when she said, "I'm dead" after finding him in bed with the the other girl. She was really hurting and was being self-destructive. I don't think she actually thought all of her behavior would impact him at all.